23247240 has 32 divisors (see below), whose sum is σ = 69742080. Its totient is φ = 6199232.

The previous prime is 23247233. The next prime is 23247247. The reversal of 23247240 is 4274232.

It is an interprime number because it is at equal distance from previous prime (23247233) and next prime (23247247).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23247240.

It is not an unprimeable number, because it can be changed into a prime (23247247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 96744 + ... + 96983.

It is an arithmetic number, because the mean of its divisors is an integer number (2179440).

Almost surely, 2^23247240 is an apocalyptic number.

23247240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23247240 is an abundant number, since it is smaller than the sum of its proper divisors (46494840).

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

23247240 is a wasteful number, since it uses less digits than its factorization.

23247240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193741 (or 193737 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 23247240 is about 4821.5391733346. The cubic root of 23247240 is about 285.4020794458.

The spelling of 23247240 in words is "twenty-three million, two hundred forty-seven thousand, two hundred forty".