30404957 has 4 divisors (see below), whose sum is σ = 33169056. Its totient is φ = 27640860.

The previous prime is 30404953. The next prime is 30404971. The reversal of 30404957 is 75940403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30404957 - 2² = 30404953 is a prime.

It is a super-2 number, since 2×30404957² = 1848922820343698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30404951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382033 + ... + 1382054.

It is an arithmetic number, because the mean of its divisors is an integer number (8292264).

Almost surely, 2^30404957 is an apocalyptic number.

It is an amenable number.

30404957 is a deficient number, since it is larger than the sum of its proper divisors (2764099).

30404957 is a wasteful number, since it uses less digits than its factorization.

30404957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764098.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 30404957 is about 5514.0690057343. The cubic root of 30404957 is about 312.1151127123.

It can be divided in two parts, 3040 and 4957, that added together give a palindrome (7997).

The spelling of 30404957 in words is "thirty million, four hundred four thousand, nine hundred fifty-seven".