23920990 has 8 divisors (see below), whose sum is σ = 43057800. Its totient is φ = 9568392.

The previous prime is 23920973. The next prime is 23921011. The reversal of 23920990 is 9902932.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196040 + ... + 1196059.

It is an arithmetic number, because the mean of its divisors is an integer number (5382225).

Almost surely, 2^23920990 is an apocalyptic number.

23920990 is a deficient number, since it is larger than the sum of its proper divisors (19136810).

23920990 is a wasteful number, since it uses less digits than its factorization.

23920990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392106.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 23920990 is about 4890.9089134843. The cubic root of 23920990 is about 288.1330323548.

The spelling of 23920990 in words is "twenty-three million, nine hundred twenty thousand, nine hundred ninety".