43740480138 has 64 divisors (see below), whose sum is σ = 92447308800. Its totient is φ = 13769471232.

The previous prime is 43740480137. The next prime is 43740480149. The reversal of 43740480138 is 83108404734.

It is a self number, because there is not a number n which added to its sum of digits gives 43740480138.

It is not an unprimeable number, because it can be changed into a prime (43740480137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4528338 + ... + 4537986.

It is an arithmetic number, because the mean of its divisors is an integer number (1444489200).

Almost surely, 2^43740480138 is an apocalyptic number.

43740480138 is an abundant number, since it is smaller than the sum of its proper divisors (48706828662).

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

43740480138 is a wasteful number, since it uses less digits than its factorization.

43740480138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10091.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 43740480138 in words is "forty-three billion, seven hundred forty million, four hundred eighty thousand, one hundred thirty-eight".