23282840 has 64 divisors (see below), whose sum is σ = 61128000. Its totient is φ = 7977984.

The previous prime is 23282827. The next prime is 23282849. The reversal of 23282840 is 4828232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23282849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12872 + ... + 14568.

It is an arithmetic number, because the mean of its divisors is an integer number (955125).

Almost surely, 2^23282840 is an apocalyptic number.

23282840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23282840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30564000).

23282840 is an abundant number, since it is smaller than the sum of its proper divisors (37845160).

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

23282840 is a wasteful number, since it uses less digits than its factorization.

23282840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 23282840 is about 4825.2295282194. The cubic root of 23282840 is about 285.5476900223.

The spelling of 23282840 in words is "twenty-three million, two hundred eighty-two thousand, eight hundred forty".