43140400440 has 64 divisors (see below), whose sum is σ = 129463587360. Its totient is φ = 11500339200.

The previous prime is 43140400423. The next prime is 43140400441. The reversal of 43140400440 is 4400404134.

It is a super-2 number, since 2×43140400440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 43140400440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140400441) 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, 319140 + ... + 433740.

Almost surely, 2^43140400440 is an apocalyptic number.

43140400440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43140400440 is an abundant number, since it is smaller than the sum of its proper divisors (86323186920).

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

43140400440 is a wasteful number, since it uses less digits than its factorization.

43140400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117752 (or 117748 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 43140400440 its reverse (4400404134), we get a palindrome (47540804574).

The spelling of 43140400440 in words is "forty-three billion, one hundred forty million, four hundred thousand, four hundred forty".