30390994 has 16 divisors (see below), whose sum is σ = 48283200. Its totient is φ = 14306544.

The previous prime is 30390991. The next prime is 30391003. The reversal of 30390994 is 49909303.

It is a super-2 number, since 2×30390994² = 1847225032616072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30390991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3952 + ... + 8740.

It is an arithmetic number, because the mean of its divisors is an integer number (3017700).

Almost surely, 2^30390994 is an apocalyptic number.

30390994 is a deficient number, since it is larger than the sum of its proper divisors (17892206).

30390994 is a wasteful number, since it uses less digits than its factorization.

30390994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 30390994 is about 5512.8027354514. The cubic root of 30390994 is about 312.0673274053.

The spelling of 30390994 in words is "thirty million, three hundred ninety thousand, nine hundred ninety-four".