23677440 has 80 divisors (see below), whose sum is σ = 75718368. Its totient is φ = 6311936.

The previous prime is 23677429. The next prime is 23677457. The reversal of 23677440 is 4477632.

It is a tau number, because it is divible by the number of its divisors (80).

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, 6139 + ... + 9221.

Almost surely, 2^23677440 is an apocalyptic number.

23677440 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 23677440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37859184).

23677440 is an abundant number, since it is smaller than the sum of its proper divisors (52040928).

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

23677440 is an equidigital number, since it uses as much as digits as its factorization.

23677440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 23677440 is about 4865.9469787494. The cubic root of 23677440 is about 287.1518255233.

The spelling of 23677440 in words is "twenty-three million, six hundred seventy-seven thousand, four hundred forty".