23389019 has 4 divisors (see below), whose sum is σ = 24620040. Its totient is φ = 22158000.

The previous prime is 23389013. The next prime is 23389021. The reversal of 23389019 is 91098332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23389019 - 2⁸ = 23388763 is a prime.

It is a super-2 number, since 2×23389019² = 1094092419564722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23389019.

It is not an unprimeable number, because it can be changed into a prime (23389013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615482 + ... + 615519.

It is an arithmetic number, because the mean of its divisors is an integer number (6155010).

Almost surely, 2^23389019 is an apocalyptic number.

23389019 is a deficient number, since it is larger than the sum of its proper divisors (1231021).

23389019 is a wasteful number, since it uses less digits than its factorization.

23389019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231020.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 23389019 is about 4836.2194946053. The cubic root of 23389019 is about 285.9811021468.

The spelling of 23389019 in words is "twenty-three million, three hundred eighty-nine thousand, nineteen".