45015870 has 16 divisors (see below), whose sum is σ = 108038160. Its totient is φ = 12004224.

The previous prime is 45015851. The next prime is 45015877. The reversal of 45015870 is 7851054.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1500529 = 45015870 / (4 + 5 + 0 + 1 + 5 + 8 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45015877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750235 + ... + 750294.

It is an arithmetic number, because the mean of its divisors is an integer number (6752385).

Almost surely, 2^45015870 is an apocalyptic number.

45015870 is an abundant number, since it is smaller than the sum of its proper divisors (63022290).

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

45015870 is a wasteful number, since it uses less digits than its factorization.

45015870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500539.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 45015870 is about 6709.3867081873. The cubic root of 45015870 is about 355.7311387914.

The spelling of 45015870 in words is "forty-five million, fifteen thousand, eight hundred seventy".