23280273 has 24 divisors (see below), whose sum is σ = 34444800. Its totient is φ = 15148224.

The previous prime is 23280269. The next prime is 23280277. The reversal of 23280273 is 37208232.

It is an interprime number because it is at equal distance from previous prime (23280269) and next prime (23280277).

It is not a de Polignac number, because 23280273 - 2² = 23280269 is a prime.

It is a super-2 number, since 2×23280273² = 1083942221909058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23280277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97288 + ... + 97526.

It is an arithmetic number, because the mean of its divisors is an integer number (1435200).

Almost surely, 2^23280273 is an apocalyptic number.

It is an amenable number.

23280273 is a deficient number, since it is larger than the sum of its proper divisors (11164527).

23280273 is a wasteful number, since it uses less digits than its factorization.

23280273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23280273 is about 4824.9635231782. The cubic root of 23280273 is about 285.5371954855.

The spelling of 23280273 in words is "twenty-three million, two hundred eighty thousand, two hundred seventy-three".