23214400040 has 64 divisors (see below), whose sum is σ = 57020922000. Its totient is φ = 8454039552.

The previous prime is 23214400021. The next prime is 23214400049. The reversal of 23214400040 is 4000441232.

It can be written as a sum of positive squares in 8 ways, for example, as 15125556196 + 8088843844 = 122986^2 + 89938^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23214399985 and 23214400021.

It is not an unprimeable number, because it can be changed into a prime (23214400049) 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, 267815 + ... + 343734.

Almost surely, 2^23214400040 is an apocalyptic number.

23214400040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23214400040 is an abundant number, since it is smaller than the sum of its proper divisors (33806521960).

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

23214400040 is a wasteful number, since it uses less digits than its factorization.

23214400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611646 (or 611642 counting only the distinct ones).

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

Adding to 23214400040 its reverse (4000441232), we get a palindrome (27214841272).

The spelling of 23214400040 in words is "twenty-three billion, two hundred fourteen million, four hundred thousand, forty".