23257838 has 4 divisors (see below), whose sum is σ = 34886760. Its totient is φ = 11628918.

The previous prime is 23257799. The next prime is 23257849. The reversal of 23257838 is 83875232.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5814458 + ... + 5814461.

It is an arithmetic number, because the mean of its divisors is an integer number (8721690).

Almost surely, 2^23257838 is an apocalyptic number.

23257838 is a deficient number, since it is larger than the sum of its proper divisors (11628922).

23257838 is a wasteful number, since it uses less digits than its factorization.

23257838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628921.

The product of its digits is 80640, while the sum is 38.

The square root of 23257838 is about 4822.6380747471. The cubic root of 23257838 is about 285.4454427543.

The spelling of 23257838 in words is "twenty-three million, two hundred fifty-seven thousand, eight hundred thirty-eight".