23938490 has 8 divisors (see below), whose sum is σ = 43089300. Its totient is φ = 9575392.

The previous prime is 23938477. The next prime is 23938493. The reversal of 23938490 is 9483932.

It can be written as a sum of positive squares in 2 ways, for example, as 21501769 + 2436721 = 4637^2 + 1561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23938493) 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, 1196915 + ... + 1196934.

Almost surely, 2^23938490 is an apocalyptic number.

23938490 is a deficient number, since it is larger than the sum of its proper divisors (19150810).

23938490 is a wasteful number, since it uses less digits than its factorization.

23938490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393856.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 23938490 is about 4892.6976199230. The cubic root of 23938490 is about 288.2032788754.

The spelling of 23938490 in words is "twenty-three million, nine hundred thirty-eight thousand, four hundred ninety".