45120816 has 60 divisors (see below), whose sum is σ = 135994768. Its totient is φ = 13882752.

The previous prime is 45120809. The next prime is 45120827. The reversal of 45120816 is 61802154.

45120816 is a `hidden beast` number, since 451 + 208 + 1 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 45120816.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10180 + ... + 13923.

Almost surely, 2^45120816 is an apocalyptic number.

It is an amenable number.

45120816 is an abundant number, since it is smaller than the sum of its proper divisors (90873952).

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

45120816 is a wasteful number, since it uses less digits than its factorization.

45120816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24130 (or 24121 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 45120816 is about 6717.2029893401. The cubic root of 45120816 is about 356.0073642377.

The spelling of 45120816 in words is "forty-five million, one hundred twenty thousand, eight hundred sixteen".