45815780 has 12 divisors (see below), whose sum is σ = 96213180. Its totient is φ = 18326304.

The previous prime is 45815779. The next prime is 45815827. The reversal of 45815780 is 8751854.

It can be written as a sum of positive squares in 2 ways, for example, as 10484644 + 35331136 = 3238^2 + 5944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145375 + ... + 1145414.

It is an arithmetic number, because the mean of its divisors is an integer number (8017765).

Almost surely, 2^45815780 is an apocalyptic number.

It is an amenable number.

45815780 is an abundant number, since it is smaller than the sum of its proper divisors (50397400).

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

45815780 is a wasteful number, since it uses less digits than its factorization.

45815780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290798 (or 2290796 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 45815780 is about 6768.7354801322. The cubic root of 45815780 is about 357.8258362401.

The spelling of 45815780 in words is "forty-five million, eight hundred fifteen thousand, seven hundred eighty".