30913536 has 88 divisors (see below), whose sum is σ = 85482720. Its totient is φ = 9920512.

The previous prime is 30913501. The next prime is 30913559. The reversal of 30913536 is 63531903.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88915 + ... + 89261.

Almost surely, 2^30913536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30913536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42741360).

30913536 is an abundant number, since it is smaller than the sum of its proper divisors (54569184).

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

30913536 is a wasteful number, since it uses less digits than its factorization.

30913536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 30913536 is about 5559.9942446013. The cubic root of 30913536 is about 313.8457327058.

The spelling of 30913536 in words is "thirty million, nine hundred thirteen thousand, five hundred thirty-six".