30745400832 has 60 divisors (see below), whose sum is σ = 88733321820. Its totient is φ = 10248465408.

The previous prime is 30745400801. The next prime is 30745400863. The reversal of 30745400832 is 23800454703.

It is a happy number.

30745400832 is a `hidden beast` number, since 30 + 7 + 4 + 540 + 0 + 83 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30745400801) and next prime (30745400863).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3331482 + ... + 3340697.

It is an arithmetic number, because the mean of its divisors is an integer number (1478888697).

Almost surely, 2^30745400832 is an apocalyptic number.

30745400832 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30745400832 is an abundant number, since it is smaller than the sum of its proper divisors (57987920988).

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

30745400832 is an equidigital number, since it uses as much as digits as its factorization.

30745400832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672203 (or 6672184 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 30745400832 in words is "thirty billion, seven hundred forty-five million, four hundred thousand, eight hundred thirty-two".