30913850 has 24 divisors (see below), whose sum is σ = 62728128. Its totient is φ = 11241200.

The previous prime is 30913843. The next prime is 30913879. The reversal of 30913850 is 5831903.

It is a super-2 number, since 2×30913850² = 1911332243645000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 27554 + ... + 28653.

It is an arithmetic number, because the mean of its divisors is an integer number (2613672).

Almost surely, 2^30913850 is an apocalyptic number.

30913850 is an abundant number, since it is smaller than the sum of its proper divisors (31814278).

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

30913850 is a wasteful number, since it uses less digits than its factorization.

30913850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56230 (or 56225 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 30913850 is about 5560.0224819689. The cubic root of 30913850 is about 313.8467953172.

The spelling of 30913850 in words is "thirty million, nine hundred thirteen thousand, eight hundred fifty".