23321408 has 56 divisors (see below), whose sum is σ = 51047904. Its totient is φ = 10483200.

The previous prime is 23321377. The next prime is 23321413. The reversal of 23321408 is 80412332.

It is a super-2 number, since 2×23321408² = 1087776142204928, which contains 22 as substring.

It is a congruent number.

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, 110423 + ... + 110633.

Almost surely, 2^23321408 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 23321408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25523952).

23321408 is an abundant number, since it is smaller than the sum of its proper divisors (27726496).

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

23321408 is a wasteful number, since it uses less digits than its factorization.

23321408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 23321408 is about 4829.2243683639. The cubic root of 23321408 is about 285.7052728585.

The spelling of 23321408 in words is "twenty-three million, three hundred twenty-one thousand, four hundred eight".