45817780 has 12 divisors (see below), whose sum is σ = 96217380. Its totient is φ = 18327104.

The previous prime is 45817777. The next prime is 45817801. The reversal of 45817780 is 8771854.

It can be written as a sum of positive squares in 2 ways, for example, as 27941796 + 17875984 = 5286^2 + 4228^2 .

It is a congruent number.

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, 1145425 + ... + 1145464.

It is an arithmetic number, because the mean of its divisors is an integer number (8018115).

Almost surely, 2^45817780 is an apocalyptic number.

It is an amenable number.

45817780 is an abundant number, since it is smaller than the sum of its proper divisors (50399600).

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

45817780 is a wasteful number, since it uses less digits than its factorization.

45817780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290898 (or 2290896 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 45817780 is about 6768.8832166023. The cubic root of 45817780 is about 357.8310428978.

The spelling of 45817780 in words is "forty-five million, eight hundred seventeen thousand, seven hundred eighty".