30475879320 has 64 divisors (see below), whose sum is σ = 91739783520. Its totient is φ = 8099154944.

The previous prime is 30475879309. The next prime is 30475879321. The reversal of 30475879320 is 2397857403.

It is a self number, because there is not a number n which added to its sum of digits gives 30475879320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30475879321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398229 + ... + 468548.

Almost surely, 2^30475879320 is an apocalyptic number.

30475879320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30475879320 is an abundant number, since it is smaller than the sum of its proper divisors (61263904200).

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

30475879320 is a wasteful number, since it uses less digits than its factorization.

30475879320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867084 (or 867080 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 30475879320 in words is "thirty billion, four hundred seventy-five million, eight hundred seventy-nine thousand, three hundred twenty".