30120402400 has 72 divisors (see below), whose sum is σ = 80216131464. Its totient is φ = 10952870400.

The previous prime is 30120402383. The next prime is 30120402419. The reversal of 30120402400 is 420402103.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent 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, 1702587 + ... + 1720186.

It is an arithmetic number, because the mean of its divisors is an integer number (1114112937).

Almost surely, 2^30120402400 is an apocalyptic number.

It is an amenable number.

30120402400 is an abundant number, since it is smaller than the sum of its proper divisors (50095729064).

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

30120402400 is a wasteful number, since it uses less digits than its factorization.

30120402400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422804 (or 3422791 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30120402400 its reverse (420402103), we get a palindrome (30540804503).

The spelling of 30120402400 in words is "thirty billion, one hundred twenty million, four hundred two thousand, four hundred".