30423056 has 20 divisors (see below), whose sum is σ = 59101500. Its totient is φ = 15171072.

The previous prime is 30423049. The next prime is 30423067. The reversal of 30423056 is 65032403.

It can be written as a sum of positive squares in 2 ways, for example, as 28944400 + 1478656 = 5380^2 + 1216^2 .

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, 4220 + ... + 8868.

It is an arithmetic number, because the mean of its divisors is an integer number (2955075).

Almost surely, 2^30423056 is an apocalyptic number.

It is an amenable number.

30423056 is a deficient number, since it is larger than the sum of its proper divisors (28678444).

30423056 is a wasteful number, since it uses less digits than its factorization.

30423056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066 (or 5060 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 30423056 is about 5515.7099271082. The cubic root of 30423056 is about 312.1770308059.

Adding to 30423056 its reverse (65032403), we get a palindrome (95455459).

The spelling of 30423056 in words is "thirty million, four hundred twenty-three thousand, fifty-six".