23064140 has 48 divisors (see below), whose sum is σ = 54147744. Its totient is φ = 8179200.

The previous prime is 23064133. The next prime is 23064191. The reversal of 23064140 is 4146032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7742 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (1128078).

Almost surely, 2^23064140 is an apocalyptic number.

23064140 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 23064140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27073872).

23064140 is an abundant number, since it is smaller than the sum of its proper divisors (31083604).

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

23064140 is a wasteful number, since it uses less digits than its factorization.

23064140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 23064140 is about 4802.5139250189. The cubic root of 23064140 is about 284.6508086118.

It can be divided in two parts, 2306 and 4140, that added together give a palindrome (6446).

The spelling of 23064140 in words is "twenty-three million, sixty-four thousand, one hundred forty".