115442400540 has 48 divisors (see below), whose sum is σ = 324496503072. Its totient is φ = 30664851456.

The previous prime is 115442400539. The next prime is 115442400547. The reversal of 115442400540 is 45004244511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 115442400498 and 115442400507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115442400547) 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, 3727849 + ... + 3758688.

It is an arithmetic number, because the mean of its divisors is an integer number (6760343814).

Almost surely, 2^115442400540 is an apocalyptic number.

115442400540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115442400540 is an abundant number, since it is smaller than the sum of its proper divisors (209054102532).

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

115442400540 is a wasteful number, since it uses less digits than its factorization.

115442400540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486806 (or 7486804 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 115442400540 in words is "one hundred fifteen billion, four hundred forty-two million, four hundred thousand, five hundred forty".