30823930 has 8 divisors (see below), whose sum is σ = 55483092. Its totient is φ = 12329568.

The previous prime is 30823921. The next prime is 30823943. The reversal of 30823930 is 3932803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28804689 + 2019241 = 5367^2 + 1421^2 .

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

It is a super-2 number, since 2×30823930² = 1900229321289800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541187 + ... + 1541206.

Almost surely, 2^30823930 is an apocalyptic number.

30823930 is a deficient number, since it is larger than the sum of its proper divisors (24659162).

30823930 is a wasteful number, since it uses less digits than its factorization.

30823930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082400.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30823930 is about 5551.9302949515. The cubic root of 30823930 is about 313.5422014146.

The spelling of 30823930 in words is "thirty million, eight hundred twenty-three thousand, nine hundred thirty".