30525642 has 48 divisors (see below), whose sum is σ = 80039232. Its totient is φ = 8208000.

The previous prime is 30525637. The next prime is 30525643. The reversal of 30525642 is 24652503.

It is not an unprimeable number, because it can be changed into a prime (30525643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4984 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (1667484).

Almost surely, 2^30525642 is an apocalyptic number.

30525642 is an abundant number, since it is smaller than the sum of its proper divisors (49513590).

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

30525642 is a wasteful number, since it uses less digits than its factorization.

30525642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283 (or 14280 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30525642 is about 5525.0015384613. The cubic root of 30525642 is about 312.5275222693.

The spelling of 30525642 in words is "thirty million, five hundred twenty-five thousand, six hundred forty-two".