202402020 has 96 divisors (see below), whose sum is σ = 593308800. Its totient is φ = 51487744.

The previous prime is 202402009. The next prime is 202402021. The reversal of 202402020 is 20204202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202401987 and 202402005.

It is not an unprimeable number, because it can be changed into a prime (202402021) 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, 154207 + ... + 155513.

It is an arithmetic number, because the mean of its divisors is an integer number (6180300).

Almost surely, 2^202402020 is an apocalyptic number.

202402020 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 202402020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296654400).

202402020 is an abundant number, since it is smaller than the sum of its proper divisors (390906780).

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

202402020 is a wasteful number, since it uses less digits than its factorization.

202402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 202402020 is about 14226.8063879424. The cubic root of 202402020 is about 587.1354200980.

Adding to 202402020 its reverse (20204202), we get a palindrome (222606222).

The spelling of 202402020 in words is "two hundred two million, four hundred two thousand, twenty".