23216406 has 16 divisors (see below), whose sum is σ = 46884864. Its totient is φ = 7663464.

The previous prime is 23216399. The next prime is 23216411. The reversal of 23216406 is 60461232.

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, 18166 + ... + 19401.

It is an arithmetic number, because the mean of its divisors is an integer number (2930304).

Almost surely, 2^23216406 is an apocalyptic number.

23216406 is an abundant number, since it is smaller than the sum of its proper divisors (23668458).

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

23216406 is a wasteful number, since it uses less digits than its factorization.

23216406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37675.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23216406 is about 4818.3405857204. The cubic root of 23216406 is about 285.2758425068.

Adding to 23216406 its reverse (60461232), we get a palindrome (83677638).

The spelling of 23216406 in words is "twenty-three million, two hundred sixteen thousand, four hundred six".