30890523460 has 36 divisors (see below), whose sum is σ = 66279775212. Its totient is φ = 12093294016.

The previous prime is 30890523457. The next prime is 30890523487. The reversal of 30890523460 is 6432509803.

It can be written as a sum of positive squares in 2 ways, for example, as 9853341696 + 21037181764 = 99264^2 + 145042^2 .

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, 305419 + ... + 393778.

It is an arithmetic number, because the mean of its divisors is an integer number (1841104867).

Almost surely, 2^30890523460 is an apocalyptic number.

It is an amenable number.

30890523460 is an abundant number, since it is smaller than the sum of its proper divisors (35389251752).

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

30890523460 is a wasteful number, since it uses less digits than its factorization.

30890523460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699300 (or 699251 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 30890523460 in words is "thirty billion, eight hundred ninety million, five hundred twenty-three thousand, four hundred sixty".