30890368 has 32 divisors (see below), whose sum is σ = 61799760. Its totient is φ = 15379968.

The previous prime is 30890351. The next prime is 30890369. The reversal of 30890368 is 86309803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30890369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47421 + ... + 48067.

Almost surely, 2^30890368 is an apocalyptic number.

It is an amenable number.

30890368 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

30890368 is an equidigital number, since it uses as much as digits as its factorization.

30890368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30890368 is about 5557.9103987020. The cubic root of 30890368 is about 313.7673097226.

The spelling of 30890368 in words is "thirty million, eight hundred ninety thousand, three hundred sixty-eight".