23420688 has 40 divisors (see below), whose sum is σ = 61115136. Its totient is φ = 7728000.

The previous prime is 23420687. The next prime is 23420689. The reversal of 23420688 is 88602432.

It is an interprime number because it is at equal distance from previous prime (23420687) and next prime (23420689).

It is not an unprimeable number, because it can be changed into a prime (23420687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 7263.

Almost surely, 2^23420688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23420688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30557568).

23420688 is an abundant number, since it is smaller than the sum of its proper divisors (37694448).

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

23420688 is a wasteful number, since it uses less digits than its factorization.

23420688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 23420688 is about 4839.4925353801. The cubic root of 23420688 is about 286.1101178322.

The spelling of 23420688 in words is "twenty-three million, four hundred twenty thousand, six hundred eighty-eight".