23990351004 has 36 divisors (see below), whose sum is σ = 60680299680. Its totient is φ = 7991769600.

The previous prime is 23990350999. The next prime is 23990351017. The reversal of 23990351004 is 40015309932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23990351004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150484 + ... + 265755.

It is an arithmetic number, because the mean of its divisors is an integer number (1685563880).

Almost surely, 2^23990351004 is an apocalyptic number.

It is an amenable number.

23990351004 is an abundant number, since it is smaller than the sum of its proper divisors (36689948676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23990351004 is a wasteful number, since it uses less digits than its factorization.

23990351004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417850 (or 417845 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 23990351004 in words is "twenty-three billion, nine hundred ninety million, three hundred fifty-one thousand, four".