23430856 has 16 divisors (see below), whose sum is σ = 43998300. Its totient is φ = 11697984.

The previous prime is 23430793. The next prime is 23430871. The reversal of 23430856 is 65803432.

It can be written as a sum of positive squares in 2 ways, for example, as 22410756 + 1020100 = 4734^2 + 1010^2 .

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 3 ways as a sum of consecutive naturals, for example, 4866 + ... + 8398.

Almost surely, 2^23430856 is an apocalyptic number.

It is an amenable number.

23430856 is a deficient number, since it is larger than the sum of its proper divisors (20567444).

23430856 is a wasteful number, since it uses less digits than its factorization.

23430856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368 (or 4364 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 23430856 is about 4840.5429447532. The cubic root of 23430856 is about 286.1515163710.

The spelling of 23430856 in words is "twenty-three million, four hundred thirty thousand, eight hundred fifty-six".