30797807400 has 72 divisors (see below), whose sum is σ = 103429309230. Its totient is φ = 8212748160.

The previous prime is 30797807399. The next prime is 30797807413. The reversal of 30797807400 is 470879703.

It can be written as a sum of positive squares in 3 ways, for example, as 18424804644 + 12373002756 = 135738^2 + 111234^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8553147 + ... + 8556746.

Almost surely, 2^30797807400 is an apocalyptic number.

30797807400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30797807400 is an abundant number, since it is smaller than the sum of its proper divisors (72631501830).

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

30797807400 is a wasteful number, since it uses less digits than its factorization.

30797807400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17109915 (or 17109903 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 30797807400 in words is "thirty billion, seven hundred ninety-seven million, eight hundred seven thousand, four hundred".