23402643 has 16 divisors (see below), whose sum is σ = 34211712. Its totient is φ = 14112000.

The previous prime is 23402633. The next prime is 23402647. The reversal of 23402643 is 34620432.

It is a happy number.

It is not a de Polignac number, because 23402643 - 2⁶ = 23402579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23402647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5283 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (2138232).

Almost surely, 2^23402643 is an apocalyptic number.

23402643 is a deficient number, since it is larger than the sum of its proper divisors (10809069).

23402643 is a wasteful number, since it uses less digits than its factorization.

23402643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 23402643 is about 4837.6278277685. The cubic root of 23402643 is about 286.0366189440.

The spelling of 23402643 in words is "twenty-three million, four hundred two thousand, six hundred forty-three".