30994073 has 16 divisors (see below), whose sum is σ = 36469440. Its totient is φ = 26035200.

The previous prime is 30993973. The next prime is 30994091. The reversal of 30994073 is 37049903.

It is a cyclic number.

It is not a de Polignac number, because 30994073 - 2¹⁰ = 30993049 is a prime.

It is a super-2 number, since 2×30994073² = 1921265122258658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30994673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (2279340).

Almost surely, 2^30994073 is an apocalyptic number.

It is an amenable number.

30994073 is a deficient number, since it is larger than the sum of its proper divisors (5475367).

30994073 is a wasteful number, since it uses less digits than its factorization.

30994073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30994073 is about 5567.2320770738. The cubic root of 30994073 is about 314.1180435726.

It can be divided in two parts, 309940 and 73, that added together give a palindrome (310013).

The spelling of 30994073 in words is "thirty million, nine hundred ninety-four thousand, seventy-three".