23435281 has 9 divisors (see below), whose sum is σ = 24179241. Its totient is φ = 22713972.

The previous prime is 23435257. The next prime is 23435311. The reversal of 23435281 is 18253432.

The square root of 23435281 is 4841.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 23435281 - 2¹⁷ = 23304209 is a prime.

It is a super-2 number, since 2×23435281² = 1098424791097922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23435221) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 227476 + ... + 227578.

Almost surely, 2^23435281 is an apocalyptic number.

23435281 is the 4841-st square number.

23435281 is the 2421-st centered octagonal number.

It is an amenable number.

23435281 is a deficient number, since it is larger than the sum of its proper divisors (743960).

23435281 is an frugal number, since it uses more digits than its factorization.

23435281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 150 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The cubic root of 23435281 is about 286.1695288123.

It can be divided in two parts, 23435 and 281, that added together give a square (23716 = 154²).

The spelling of 23435281 in words is "twenty-three million, four hundred thirty-five thousand, two hundred eighty-one".