23398790 has 8 divisors (see below), whose sum is σ = 42117840. Its totient is φ = 9359512.

The previous prime is 23398789. The next prime is 23398799. The reversal of 23398790 is 9789332.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23398799) 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, 1169930 + ... + 1169949.

It is an arithmetic number, because the mean of its divisors is an integer number (5264730).

Almost surely, 2^23398790 is an apocalyptic number.

23398790 is a deficient number, since it is larger than the sum of its proper divisors (18719050).

23398790 is a wasteful number, since it uses less digits than its factorization.

23398790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339886.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 23398790 is about 4837.2295790049. The cubic root of 23398790 is about 286.0209204381.

The spelling of 23398790 in words is "twenty-three million, three hundred ninety-eight thousand, seven hundred ninety".