30638274 has 32 divisors (see below), whose sum is σ = 63201600. Its totient is φ = 9895872.

The previous prime is 30638263. The next prime is 30638281. The reversal of 30638274 is 47283603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38044 + ... + 38840.

It is an arithmetic number, because the mean of its divisors is an integer number (1975050).

Almost surely, 2^30638274 is an apocalyptic number.

30638274 is an abundant number, since it is smaller than the sum of its proper divisors (32563326).

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

30638274 is a wasteful number, since it uses less digits than its factorization.

30638274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 30638274 is about 5535.1850917562. The cubic root of 30638274 is about 312.9114333280.

The spelling of 30638274 in words is "thirty million, six hundred thirty-eight thousand, two hundred seventy-four".