30408923 has 6 divisors (see below), whose sum is σ = 31422492. Its totient is φ = 29427060.

The previous prime is 30408913. The next prime is 30408941. The reversal of 30408923 is 32980403.

It is not a de Polignac number, because 30408923 - 2¹⁰ = 30407899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30408913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14861 + ... + 16782.

It is an arithmetic number, because the mean of its divisors is an integer number (5237082).

Almost surely, 2^30408923 is an apocalyptic number.

30408923 is a deficient number, since it is larger than the sum of its proper divisors (1013569).

30408923 is an equidigital number, since it uses as much as digits as its factorization.

30408923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31705 (or 31674 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30408923 is about 5514.4286195398. The cubic root of 30408923 is about 312.1286828101.

The spelling of 30408923 in words is "thirty million, four hundred eight thousand, nine hundred twenty-three".