30272990 has 48 divisors (see below), whose sum is σ = 60673536. Its totient is φ = 10866240.

The previous prime is 30272987. The next prime is 30273031. The reversal of 30272990 is 9927203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153572 + ... + 153768.

It is an arithmetic number, because the mean of its divisors is an integer number (1264032).

Almost surely, 2^30272990 is an apocalyptic number.

30272990 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

30272990 is a wasteful number, since it uses less digits than its factorization.

30272990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 30272990 is about 5502.0896030508. The cubic root of 30272990 is about 311.6628988395.

The spelling of 30272990 in words is "thirty million, two hundred seventy-two thousand, nine hundred ninety".