1553790402 has 24 divisors (see below), whose sum is σ = 3375350784. Its totient is φ = 516575544.

The previous prime is 1553790349. The next prime is 1553790421. The reversal of 1553790402 is 2040973551.

It is a super-2 number, since 2×1553790402² = 4828529226694643208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105798 + ... + 119585.

It is an arithmetic number, because the mean of its divisors is an integer number (140639616).

Almost surely, 2^1553790402 is an apocalyptic number.

1553790402 is an abundant number, since it is smaller than the sum of its proper divisors (1821560382).

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

1553790402 is a wasteful number, since it uses less digits than its factorization.

1553790402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225774 (or 225771 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1553790402 is about 39418.1481300175. The cubic root of 1553790402 is about 1158.2371166473.

The spelling of 1553790402 in words is "one billion, five hundred fifty-three million, seven hundred ninety thousand, four hundred two".