23320436 has 36 divisors (see below), whose sum is σ = 43479072. Its totient is φ = 10941744.

The previous prime is 23320433. The next prime is 23320439. The reversal of 23320436 is 63402332.

It is an interprime number because it is at equal distance from previous prime (23320433) and next prime (23320439).

It is a Harshad number since it is a multiple of its sum of digits (23).

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 11 ways as a sum of consecutive naturals, for example, 217895 + ... + 218001.

It is an arithmetic number, because the mean of its divisors is an integer number (1207752).

Almost surely, 2^23320436 is an apocalyptic number.

It is an amenable number.

23320436 is a deficient number, since it is larger than the sum of its proper divisors (20158636).

23320436 is a wasteful number, since it uses less digits than its factorization.

23320436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 23320436 is about 4829.1237300363. The cubic root of 23320436 is about 285.7013035530.

Adding to 23320436 its reverse (63402332), we get a palindrome (86722768).

The spelling of 23320436 in words is "twenty-three million, three hundred twenty thousand, four hundred thirty-six".