30739994 has 8 divisors (see below), whose sum is σ = 46136628. Its totient is φ = 15361120.

The previous prime is 30739981. The next prime is 30739999. The reversal of 30739994 is 49993703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30525625 + 214369 = 5525^2 + 463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30739994² = 1889894462240072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30739999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454 + ... + 7974.

Almost surely, 2^30739994 is an apocalyptic number.

30739994 is a deficient number, since it is larger than the sum of its proper divisors (15396634).

30739994 is a wasteful number, since it uses less digits than its factorization.

30739994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 30739994 is about 5544.3659691618. The cubic root of 30739994 is about 313.2573426202.

The spelling of 30739994 in words is "thirty million, seven hundred thirty-nine thousand, nine hundred ninety-four".