200402020 has 96 divisors (see below), whose sum is σ = 522144000. Its totient is φ = 62913024.

The previous prime is 200402017. The next prime is 200402023. The reversal of 200402020 is 20204002.

It is a happy number.

200402020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200402017) and next prime (200402023).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 200401988 and 200402006.

It is not an unprimeable number, because it can be changed into a prime (200402023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270811 + ... + 271549.

It is an arithmetic number, because the mean of its divisors is an integer number (5439000).

Almost surely, 2^200402020 is an apocalyptic number.

200402020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200402020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261072000).

200402020 is an abundant number, since it is smaller than the sum of its proper divisors (321741980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200402020 is a wasteful number, since it uses less digits than its factorization.

200402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 200402020 is about 14156.3420416434. The cubic root of 200402020 is about 585.1951232613.

Adding to 200402020 its reverse (20204002), we get a palindrome (220606022).

The spelling of 200402020 in words is "two hundred million, four hundred two thousand, twenty".