45857128 has 8 divisors (see below), whose sum is σ = 85982130. Its totient is φ = 22928560.

The previous prime is 45857117. The next prime is 45857129. The reversal of 45857128 is 82175854.

It can be written as a sum of positive squares in only one way, i.e., 36505764 + 9351364 = 6042^2 + 3058^2 .

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

It is not an unprimeable number, because it can be changed into a prime (45857129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2866063 + ... + 2866078.

Almost surely, 2^45857128 is an apocalyptic number.

It is an amenable number.

45857128 is a deficient number, since it is larger than the sum of its proper divisors (40125002).

45857128 is a wasteful number, since it uses less digits than its factorization.

45857128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732147 (or 5732143 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 45857128 is about 6771.7891284357. The cubic root of 45857128 is about 357.9334478828.

The spelling of 45857128 in words is "forty-five million, eight hundred fifty-seven thousand, one hundred twenty-eight".