23641990 has 8 divisors (see below), whose sum is σ = 42555600. Its totient is φ = 9456792.

The previous prime is 23641957. The next prime is 23641993. The reversal of 23641990 is 9914632.

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 (23641993) 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, 1182090 + ... + 1182109.

It is an arithmetic number, because the mean of its divisors is an integer number (5319450).

Almost surely, 2^23641990 is an apocalyptic number.

23641990 is a deficient number, since it is larger than the sum of its proper divisors (18913610).

23641990 is a wasteful number, since it uses less digits than its factorization.

23641990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364206.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 23641990 is about 4862.3029523056. The cubic root of 23641990 is about 287.0084454855.

The spelling of 23641990 in words is "twenty-three million, six hundred forty-one thousand, nine hundred ninety".