30373057 has 12 divisors (see below), whose sum is σ = 35955220. Its totient is φ = 25486560.

The previous prime is 30373027. The next prime is 30373061. The reversal of 30373057 is 75037303.

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 26050816 = 2079^2 + 5104^2 .

It is not a de Polignac number, because 30373057 - 2²³ = 21984449 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30373027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8082 + ... + 11227.

Almost surely, 2^30373057 is an apocalyptic number.

It is an amenable number.

30373057 is a deficient number, since it is larger than the sum of its proper divisors (5582163).

30373057 is a wasteful number, since it uses less digits than its factorization.

30373057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344 (or 19333 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 28.

The square root of 30373057 is about 5511.1756459035. The cubic root of 30373057 is about 312.0059204717.

The spelling of 30373057 in words is "thirty million, three hundred seventy-three thousand, fifty-seven".