23413134440 has 64 divisors (see below), whose sum is σ = 53694642960. Its totient is φ = 9186508800.

The previous prime is 23413134439. The next prime is 23413134443. The reversal of 23413134440 is 4443131432.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 827252644 + 22585881796 = 28762^2 + 150286^2 .

It is a super-2 number, since 2×23413134440² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23413134443) 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, 411740 + ... + 465140.

Almost surely, 2^23413134440 is an apocalyptic number.

23413134440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23413134440 is an abundant number, since it is smaller than the sum of its proper divisors (30281508520).

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

23413134440 is a wasteful number, since it uses less digits than its factorization.

23413134440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53622 (or 53618 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23413134440 its reverse (4443131432), we get a palindrome (27856265872).

The spelling of 23413134440 in words is "twenty-three billion, four hundred thirteen million, one hundred thirty-four thousand, four hundred forty".