1002020200 has 48 divisors (see below), whose sum is σ = 2359224000. Its totient is φ = 395728320.

The previous prime is 1002020191. The next prime is 1002020249. The reversal of 1002020200 is 20202001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15910 + ... + 47509.

It is an arithmetic number, because the mean of its divisors is an integer number (49150500).

Almost surely, 2^1002020200 is an apocalyptic number.

1002020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002020200 is an abundant number, since it is smaller than the sum of its proper divisors (1357203800).

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

1002020200 is a wasteful number, since it uses less digits than its factorization.

1002020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63514 (or 63505 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1002020200 is about 31654.7026522127. The cubic root of 1002020200 is about 1000.6729470407.

Adding to 1002020200 its reverse (20202001), we get a palindrome (1022222201).

The spelling of 1002020200 in words is "one billion, two million, twenty thousand, two hundred".