30539994 has 16 divisors (see below), whose sum is σ = 61767360. Its totient is φ = 10065440.

The previous prime is 30539983. The next prime is 30540017. The reversal of 30539994 is 49993503.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28062 + ... + 29129.

It is an arithmetic number, because the mean of its divisors is an integer number (3860460).

Almost surely, 2^30539994 is an apocalyptic number.

30539994 is an abundant number, since it is smaller than the sum of its proper divisors (31227366).

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

30539994 is a wasteful number, since it uses less digits than its factorization.

30539994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57285.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 30539994 is about 5526.3002090006. The cubic root of 30539994 is about 312.5764941275.

The spelling of 30539994 in words is "thirty million, five hundred thirty-nine thousand, nine hundred ninety-four".