23660090 has 16 divisors (see below), whose sum is σ = 45093672. Its totient is φ = 8907264.

The previous prime is 23660089. The next prime is 23660113. The reversal of 23660090 is 9006632.

It can be written as a sum of positive squares in 4 ways, for example, as 14737921 + 8922169 = 3839^2 + 2987^2 .

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, 69419 + ... + 69758.

Almost surely, 2^23660090 is an apocalyptic number.

23660090 is a deficient number, since it is larger than the sum of its proper divisors (21433582).

23660090 is a wasteful number, since it uses less digits than its factorization.

23660090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139201.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 23660090 is about 4864.1638541480. The cubic root of 23660090 is about 287.0816701129.

The spelling of 23660090 in words is "twenty-three million, six hundred sixty thousand, ninety".