45115780 has 24 divisors (see below), whose sum is σ = 95376960. Its totient is φ = 17925600.

The previous prime is 45115771. The next prime is 45115813. The reversal of 45115780 is 8751154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4450 + ... + 10489.

It is an arithmetic number, because the mean of its divisors is an integer number (3974040).

Almost surely, 2^45115780 is an apocalyptic number.

It is an amenable number.

45115780 is an abundant number, since it is smaller than the sum of its proper divisors (50261180).

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

45115780 is a wasteful number, since it uses less digits than its factorization.

45115780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099 (or 15097 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 45115780 is about 6716.8281204747. The cubic root of 45115780 is about 355.9941189114.

The spelling of 45115780 in words is "forty-five million, one hundred fifteen thousand, seven hundred eighty".