23426664 has 64 divisors (see below), whose sum is σ = 61387200. Its totient is φ = 7440384.

The previous prime is 23426653. The next prime is 23426699. The reversal of 23426664 is 46662432.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67339 + ... + 67685.

It is an arithmetic number, because the mean of its divisors is an integer number (959175).

Almost surely, 2^23426664 is an apocalyptic number.

23426664 is a gapful number since it is divisible by the number (24) 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 23426664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30693600).

23426664 is an abundant number, since it is smaller than the sum of its proper divisors (37960536).

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

23426664 is a wasteful number, since it uses less digits than its factorization.

23426664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 478 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 23426664 is about 4840.1099161073. The cubic root of 23426664 is about 286.1344502894.

It can be divided in two parts, 23426 and 664, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 23426664 in words is "twenty-three million, four hundred twenty-six thousand, six hundred sixty-four".