30899152 has 20 divisors (see below), whose sum is σ = 61932420. Its totient is φ = 14916608.

The previous prime is 30899147. The next prime is 30899179. The reversal of 30899152 is 25199803.

It can be written as a sum of positive squares in 2 ways, for example, as 13957696 + 16941456 = 3736^2 + 4116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32833 + ... + 33760.

It is an arithmetic number, because the mean of its divisors is an integer number (3096621).

Almost surely, 2^30899152 is an apocalyptic number.

It is an amenable number.

30899152 is an abundant number, since it is smaller than the sum of its proper divisors (31033268).

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

30899152 is a wasteful number, since it uses less digits than its factorization.

30899152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66630 (or 66624 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 30899152 is about 5558.7005675787. The cubic root of 30899152 is about 313.7970479120.

The spelling of 30899152 in words is "thirty million, eight hundred ninety-nine thousand, one hundred fifty-two".