45728584 has 16 divisors (see below), whose sum is σ = 93535920. Its totient is φ = 20785680.

The previous prime is 45728569. The next prime is 45728591. The reversal of 45728584 is 48582754.

It is a happy number.

It is a super-2 number, since 2×45728584² = 4182206789290112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45728584.

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, 259734 + ... + 259909.

It is an arithmetic number, because the mean of its divisors is an integer number (5845995).

Almost surely, 2^45728584 is an apocalyptic number.

45728584 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45728584 is an abundant number, since it is smaller than the sum of its proper divisors (47807336).

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

45728584 is a wasteful number, since it uses less digits than its factorization.

45728584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519660 (or 519656 counting only the distinct ones).

The product of its digits is 358400, while the sum is 43.

The square root of 45728584 is about 6762.2913276492. The cubic root of 45728584 is about 357.5986889098.

The spelling of 45728584 in words is "forty-five million, seven hundred twenty-eight thousand, five hundred eighty-four".