23263280 has 20 divisors (see below), whose sum is σ = 54087312. Its totient is φ = 9305280.

The previous prime is 23263241. The next prime is 23263297. The reversal of 23263280 is 8236232.

23263280 = 299² + 300² + ... + 458².

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 145316 + ... + 145475.

Almost surely, 2^23263280 is an apocalyptic number.

23263280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23263280 is an abundant number, since it is smaller than the sum of its proper divisors (30824032).

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

23263280 is a wasteful number, since it uses less digits than its factorization.

23263280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290804 (or 290798 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 23263280 is about 4823.2022557633. The cubic root of 23263280 is about 285.4677043959.

The spelling of 23263280 in words is "twenty-three million, two hundred sixty-three thousand, two hundred eighty".