45728308 has 12 divisors (see below), whose sum is σ = 80241700. Its totient is φ = 22802112.

The previous prime is 45728297. The next prime is 45728311. The reversal of 45728308 is 80382754.

It can be written as a sum of positive squares in 2 ways, for example, as 9872164 + 35856144 = 3142^2 + 5988^2 .

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13833 + ... + 16816.

Almost surely, 2^45728308 is an apocalyptic number.

It is an amenable number.

45728308 is a deficient number, since it is larger than the sum of its proper divisors (34513392).

45728308 is a wasteful number, since it uses less digits than its factorization.

45728308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31026 (or 31024 counting only the distinct ones).

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

The square root of 45728308 is about 6762.2709203344. The cubic root of 45728308 is about 357.5979694660.

It can be divided in two parts, 4572 and 8308, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 45728308 in words is "forty-five million, seven hundred twenty-eight thousand, three hundred eight".