30400523524 has 24 divisors (see below), whose sum is σ = 61484209920. Its totient is φ = 12882403776.

The previous prime is 30400523509. The next prime is 30400523537. The reversal of 30400523524 is 42532500403.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 30400523492 and 30400523501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6097132 + ... + 6102115.

It is an arithmetic number, because the mean of its divisors is an integer number (2561842080).

Almost surely, 2^30400523524 is an apocalyptic number.

It is an amenable number.

30400523524 is an abundant number, since it is smaller than the sum of its proper divisors (31083686396).

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

30400523524 is a wasteful number, since it uses less digits than its factorization.

30400523524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199347 (or 12199345 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The spelling of 30400523524 in words is "thirty billion, four hundred million, five hundred twenty-three thousand, five hundred twenty-four".