23404331000 has 64 divisors (see below), whose sum is σ = 55026185760. Its totient is φ = 9317280000.

The previous prime is 23404330987. The next prime is 23404331009. The reversal of 23404331000 is 13340432.

It is a super-2 number, since 2×23404331000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404331009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155540 + ... + 266460.

Almost surely, 2^23404331000 is an apocalyptic number.

23404331000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23404331000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27513092880).

23404331000 is an abundant number, since it is smaller than the sum of its proper divisors (31621854760).

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

23404331000 is a wasteful number, since it uses less digits than its factorization.

23404331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111153 (or 111139 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23404331000 its reverse (13340432), we get a palindrome (23417671432).

The spelling of 23404331000 in words is "twenty-three billion, four hundred four million, three hundred thirty-one thousand".