23040490 has 16 divisors (see below), whose sum is σ = 45243360. Its totient is φ = 8378320.

The previous prime is 23040487. The next prime is 23040497. The reversal of 23040490 is 9404032.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (23040497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104620 + ... + 104839.

It is an arithmetic number, because the mean of its divisors is an integer number (2827710).

Almost surely, 2^23040490 is an apocalyptic number.

23040490 is a deficient number, since it is larger than the sum of its proper divisors (22202870).

23040490 is a wasteful number, since it uses less digits than its factorization.

23040490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209477.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 23040490 is about 4800.0510413953. The cubic root of 23040490 is about 284.5534815645.

It can be divided in two parts, 23040 and 490, that multiplied together give a square (11289600 = 3360²).

The spelling of 23040490 in words is "twenty-three million, forty thousand, four hundred ninety".