23404012004 has 18 divisors (see below), whose sum is σ = 41577475590. Its totient is φ = 11527340352.

The previous prime is 23404011977. The next prime is 23404012031. The reversal of 23404012004 is 40021040432.

It is an interprime number because it is at equal distance from previous prime (23404011977) and next prime (23404012031).

It can be written as a sum of positive squares in only one way, i.e., 15463419904 + 7940592100 = 124352^2 + 89110^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633749 + ... + 669660.

It is an arithmetic number, because the mean of its divisors is an integer number (2309859755).

Almost surely, 2^23404012004 is an apocalyptic number.

It is an amenable number.

23404012004 is a deficient number, since it is larger than the sum of its proper divisors (18173463586).

23404012004 is a wasteful number, since it uses less digits than its factorization.

23404012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303547 (or 1303478 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 23404012004 its reverse (40021040432), we get a palindrome (63425052436).

The spelling of 23404012004 in words is "twenty-three billion, four hundred four million, twelve thousand, four".