23266240 has 28 divisors (see below), whose sum is σ = 55403496. Its totient is φ = 9306368.

The previous prime is 23266223. The next prime is 23266249. The reversal of 23266240 is 4266232.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23266249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36034 + ... + 36673.

Almost surely, 2^23266240 is an apocalyptic number.

23266240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23266240 is an abundant number, since it is smaller than the sum of its proper divisors (32137256).

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

23266240 is an equidigital number, since it uses as much as digits as its factorization.

23266240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72724 (or 72714 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 23266240 is about 4823.5090960835. The cubic root of 23266240 is about 285.4798114385.

The spelling of 23266240 in words is "twenty-three million, two hundred sixty-six thousand, two hundred forty".