30423745 has 16 divisors (see below), whose sum is σ = 39961152. Its totient is φ = 22052160.

The previous prime is 30423737. The next prime is 30423773. The reversal of 30423745 is 54732403.

It is not a de Polignac number, because 30423745 - 2³ = 30423737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19774 + ... + 21256.

It is an arithmetic number, because the mean of its divisors is an integer number (2497572).

Almost surely, 2^30423745 is an apocalyptic number.

It is an amenable number.

30423745 is a deficient number, since it is larger than the sum of its proper divisors (9537407).

30423745 is a wasteful number, since it uses less digits than its factorization.

30423745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 30423745 is about 5515.7723847164. The cubic root of 30423745 is about 312.1793874434.

The spelling of 30423745 in words is "thirty million, four hundred twenty-three thousand, seven hundred forty-five".