23320413 has 48 divisors (see below), whose sum is σ = 39000960. Its totient is φ = 13698432.

The previous prime is 23320387. The next prime is 23320421. The reversal of 23320413 is 31402332.

23320413 is a `hidden beast` number, since 233 + 20 + 413 = 666.

It is not a de Polignac number, because 23320413 - 2²¹ = 21223261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496156 + ... + 496202.

It is an arithmetic number, because the mean of its divisors is an integer number (812520).

Almost surely, 2^23320413 is an apocalyptic number.

23320413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23320413 is a deficient number, since it is larger than the sum of its proper divisors (15680547).

23320413 is a wasteful number, since it uses less digits than its factorization.

23320413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23320413 is about 4829.1213486513. The cubic root of 23320413 is about 285.7012096278.

Adding to 23320413 its reverse (31402332), we get a palindrome (54722745).

The spelling of 23320413 in words is "twenty-three million, three hundred twenty thousand, four hundred thirteen".