45380728 has 8 divisors (see below), whose sum is σ = 85088880. Its totient is φ = 22690360.

The previous prime is 45380707. The next prime is 45380779. The reversal of 45380728 is 82708354.

45380728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2836288 + ... + 2836303.

It is an arithmetic number, because the mean of its divisors is an integer number (10636110).

Almost surely, 2^45380728 is an apocalyptic number.

It is an amenable number.

45380728 is a deficient number, since it is larger than the sum of its proper divisors (39708152).

45380728 is a wasteful number, since it uses less digits than its factorization.

45380728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672597 (or 5672593 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 45380728 is about 6736.5219512743. The cubic root of 45380728 is about 356.6896323563.

The spelling of 45380728 in words is "forty-five million, three hundred eighty thousand, seven hundred twenty-eight".