23321406 has 16 divisors (see below), whose sum is σ = 47000448. Its totient is φ = 7714200.

The previous prime is 23321377. The next prime is 23321413. The reversal of 23321406 is 60412332.

It is a happy number.

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, 14050 + ... + 15621.

It is an arithmetic number, because the mean of its divisors is an integer number (2937528).

Almost surely, 2^23321406 is an apocalyptic number.

23321406 is an abundant number, since it is smaller than the sum of its proper divisors (23679042).

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

23321406 is a wasteful number, since it uses less digits than its factorization.

23321406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29807.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23321406 is about 4829.2241612913. The cubic root of 23321406 is about 285.7052646914.

Adding to 23321406 its reverse (60412332), we get a palindrome (83733738).

The spelling of 23321406 in words is "twenty-three million, three hundred twenty-one thousand, four hundred six".