23404434440040 has 96 divisors (see below), whose sum is σ = 76065030119520. Its totient is φ = 6241131794304.

The previous prime is 23404434440027. The next prime is 23404434440053. The reversal of 23404434440040 is 4004443440432.

23404434440040 is a `hidden beast` number, since 234 + 0 + 4 + 4 + 344 + 40 + 0 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (23404434440027) and next prime (23404434440053).

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

It is a junction number, because it is equal to n+sod(n) for n = 23404434439977 and 23404434440004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70048819 + ... + 70382141.

It is an arithmetic number, because the mean of its divisors is an integer number (792344063745).

Almost surely, 2^{23404434440040} is an apocalyptic number.

23404434440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23404434440040 is an abundant number, since it is smaller than the sum of its proper divisors (52660595679480).

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

23404434440040 is a wasteful number, since it uses less digits than its factorization.

23404434440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528383 (or 528376 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 23404434440040 its reverse (4004443440432), we get a palindrome (27408877880472).

The spelling of 23404434440040 in words is "twenty-three trillion, four hundred four billion, four hundred thirty-four million, four hundred forty thousand, forty".