23247280 has 40 divisors (see below), whose sum is σ = 61772832. Its totient is φ = 7970304.

The previous prime is 23247277. The next prime is 23247293. The reversal of 23247280 is 8274232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20197 + ... + 21316.

Almost surely, 2^23247280 is an apocalyptic number.

23247280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23247280 is an abundant number, since it is smaller than the sum of its proper divisors (38525552).

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

23247280 is a wasteful number, since it uses less digits than its factorization.

23247280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41533 (or 41527 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23247280 is about 4821.5433213858. The cubic root of 23247280 is about 285.4022431366.

It can be divided in two parts, 2324 and 7280, that added together give a square (9604 = 98²).

The spelling of 23247280 in words is "twenty-three million, two hundred forty-seven thousand, two hundred eighty".