43440013000 has 32 divisors (see below), whose sum is σ = 101649632760. Its totient is φ = 17376004800.

The previous prime is 43440012929. The next prime is 43440013003. The reversal of 43440013000 is 31004434.

It can be written as a sum of positive squares in 4 ways, for example, as 5646320164 + 37793692836 = 75142^2 + 194406^2 .

It is not an unprimeable number, because it can be changed into a prime (43440013003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21719007 + ... + 21721006.

Almost surely, 2^43440013000 is an apocalyptic number.

43440013000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43440013000 is an abundant number, since it is smaller than the sum of its proper divisors (58209619760).

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

43440013000 is a wasteful number, since it uses less digits than its factorization.

43440013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43440034 (or 43440020 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 43440013000 its reverse (31004434), we get a palindrome (43471017434).

The spelling of 43440013000 in words is "forty-three billion, four hundred forty million, thirteen thousand".