45065772 has 18 divisors (see below), whose sum is σ = 113916348. Its totient is φ = 15021912.

The previous prime is 45065771. The next prime is 45065803. The reversal of 45065772 is 27756054.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1251827 = 45065772 / (4 + 5 + 0 + 6 + 5 + 7 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (45065771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 625878 + ... + 625949.

It is an arithmetic number, because the mean of its divisors is an integer number (6328686).

Almost surely, 2^45065772 is an apocalyptic number.

It is an amenable number.

45065772 is an abundant number, since it is smaller than the sum of its proper divisors (68850576).

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

45065772 is a wasteful number, since it uses less digits than its factorization.

45065772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251837 (or 1251832 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 45065772 is about 6713.1044979205. The cubic root of 45065772 is about 355.8625379315.

The spelling of 45065772 in words is "forty-five million, sixty-five thousand, seven hundred seventy-two".