23484840 has 128 divisors (see below), whose sum is σ = 75202560. Its totient is φ = 5854464.

The previous prime is 23484827. The next prime is 23484847. The reversal of 23484840 is 4848432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23484847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184857 + ... + 184983.

It is an arithmetic number, because the mean of its divisors is an integer number (587520).

Almost surely, 2^23484840 is an apocalyptic number.

23484840 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 23484840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37601280).

23484840 is an abundant number, since it is smaller than the sum of its proper divisors (51717720).

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

23484840 is a wasteful number, since it uses less digits than its factorization.

23484840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 23484840 is about 4846.1159705480. The cubic root of 23484840 is about 286.3711093586.

The spelling of 23484840 in words is "twenty-three million, four hundred eighty-four thousand, eight hundred forty".