30897088400 has 30 divisors (see below), whose sum is σ = 74230255842. Its totient is φ = 12358835200.

The previous prime is 30897088381. The next prime is 30897088421. The reversal of 30897088400 is 488079803.

It can be written as a sum of positive squares in 3 ways, for example, as 5064884224 + 25832204176 = 71168^2 + 160724^2 .

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, 38620961 + ... + 38621760.

Almost surely, 2^30897088400 is an apocalyptic number.

It is an amenable number.

30897088400 is an abundant number, since it is smaller than the sum of its proper divisors (43333167442).

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

30897088400 is a wasteful number, since it uses less digits than its factorization.

30897088400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77242739 (or 77242728 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 30897088400 in words is "thirty billion, eight hundred ninety-seven million, eighty-eight thousand, four hundred".