23407490 has 16 divisors (see below), whose sum is σ = 42190200. Its totient is φ = 9350400.

The previous prime is 23407481. The next prime is 23407513. The reversal of 23407490 is 9470432.

It can be written as a sum of positive squares in 4 ways, for example, as 14341369 + 9066121 = 3787^2 + 3011^2 .

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 11036 + ... + 12984.

Almost surely, 2^23407490 is an apocalyptic number.

23407490 is a deficient number, since it is larger than the sum of its proper divisors (18782710).

23407490 is a wasteful number, since it uses less digits than its factorization.

23407490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23407490 is about 4838.1287705062. The cubic root of 23407490 is about 286.0563649158.

The spelling of 23407490 in words is "twenty-three million, four hundred seven thousand, four hundred ninety".