23041890 has 24 divisors (see below), whose sum is σ = 59909148. Its totient is φ = 6144480.

The previous prime is 23041873. The next prime is 23041933. The reversal of 23041890 is 9814032.

It can be written as a sum of positive squares in 2 ways, for example, as 22953681 + 88209 = 4791^2 + 297^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127921 + ... + 128100.

Almost surely, 2^23041890 is an apocalyptic number.

23041890 is an abundant number, since it is smaller than the sum of its proper divisors (36867258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23041890 is a wasteful number, since it uses less digits than its factorization.

23041890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256034 (or 256031 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23041890 is about 4800.1968709627. The cubic root of 23041890 is about 284.5592448506.

The spelling of 23041890 in words is "twenty-three million, forty-one thousand, eight hundred ninety".