23446645 has 16 divisors (see below), whose sum is σ = 29412720. Its totient is φ = 17920000.

The previous prime is 23446639. The next prime is 23446667. The reversal of 23446645 is 54664432.

It can be written as a sum of positive squares in 8 ways, for example, as 7518564 + 15928081 = 2742^2 + 3991^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23446645 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23446645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13845 + ... + 15445.

It is an arithmetic number, because the mean of its divisors is an integer number (1838295).

Almost surely, 2^23446645 is an apocalyptic number.

It is an amenable number.

23446645 is a deficient number, since it is larger than the sum of its proper divisors (5966075).

23446645 is a wasteful number, since it uses less digits than its factorization.

23446645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736.

The product of its digits is 69120, while the sum is 34.

The square root of 23446645 is about 4842.1735821839. The cubic root of 23446645 is about 286.2157768179.

The spelling of 23446645 in words is "twenty-three million, four hundred forty-six thousand, six hundred forty-five".