23497490 has 48 divisors (see below), whose sum is σ = 46744128. Its totient is φ = 8487072.

The previous prime is 23497489. The next prime is 23497531. The reversal of 23497490 is 9479432.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 23 ways as a sum of consecutive naturals, for example, 82889 + ... + 83171.

It is an arithmetic number, because the mean of its divisors is an integer number (973836).

Almost surely, 2^23497490 is an apocalyptic number.

23497490 is a deficient number, since it is larger than the sum of its proper divisors (23246638).

23497490 is a wasteful number, since it uses less digits than its factorization.

23497490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23497490 is about 4847.4209637703. The cubic root of 23497490 is about 286.4225176188.

The spelling of 23497490 in words is "twenty-three million, four hundred ninety-seven thousand, four hundred ninety".