23255490 has 32 divisors (see below), whose sum is σ = 59097600. Its totient is φ = 5836544.

The previous prime is 23255483. The next prime is 23255503. The reversal of 23255490 is 9455232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22290 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^23255490 is an apocalyptic number.

23255490 is an abundant number, since it is smaller than the sum of its proper divisors (35842110).

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

23255490 is a wasteful number, since it uses less digits than its factorization.

23255490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45626.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 23255490 is about 4822.3946333746. The cubic root of 23255490 is about 285.4358366959.

The spelling of 23255490 in words is "twenty-three million, two hundred fifty-five thousand, four hundred ninety".