23388842 has 4 divisors (see below), whose sum is σ = 35083266. Its totient is φ = 11694420.

The previous prime is 23388823. The next prime is 23388857. The reversal of 23388842 is 24888332.

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

It can be written as a sum of positive squares in only one way, i.e., 14984641 + 8404201 = 3871^2 + 2899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23388796 and 23388805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5847209 + ... + 5847212.

Almost surely, 2^23388842 is an apocalyptic number.

23388842 is a deficient number, since it is larger than the sum of its proper divisors (11694424).

23388842 is a wasteful number, since it uses less digits than its factorization.

23388842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694423.

The product of its digits is 73728, while the sum is 38.

The square root of 23388842 is about 4836.2011951531. The cubic root of 23388842 is about 285.9803807429.

The spelling of 23388842 in words is "twenty-three million, three hundred eighty-eight thousand, eight hundred forty-two".