45027864 has 72 divisors (see below), whose sum is σ = 141871860. Its totient is φ = 12864096.

The previous prime is 45027823. The next prime is 45027869. The reversal of 45027864 is 46872054.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45027869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2854 + ... + 9909.

Almost surely, 2^45027864 is an apocalyptic number.

It is an amenable number.

45027864 is an abundant number, since it is smaller than the sum of its proper divisors (96843996).

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

45027864 is a wasteful number, since it uses less digits than its factorization.

45027864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12789 (or 12775 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 45027864 is about 6710.2804710384. The cubic root of 45027864 is about 355.7627295793.

The spelling of 45027864 in words is "forty-five million, twenty-seven thousand, eight hundred sixty-four".