45728774 has 16 divisors (see below), whose sum is σ = 84422688. Its totient is φ = 18090432.

The previous prime is 45728747. The next prime is 45728777. The reversal of 45728774 is 47782754.

It is a super-2 number, since 2×45728774² = 4182241543086152, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45728777) 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 7 ways as a sum of consecutive naturals, for example, 125447 + ... + 125810.

It is an arithmetic number, because the mean of its divisors is an integer number (5276418).

Almost surely, 2^45728774 is an apocalyptic number.

45728774 is a deficient number, since it is larger than the sum of its proper divisors (38693914).

45728774 is a wasteful number, since it uses less digits than its factorization.

45728774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251279.

The product of its digits is 439040, while the sum is 44.

The square root of 45728774 is about 6762.3053761273. The cubic root of 45728774 is about 357.5991841774.

The spelling of 45728774 in words is "forty-five million, seven hundred twenty-eight thousand, seven hundred seventy-four".