45993128 has 8 divisors (see below), whose sum is σ = 86237130. Its totient is φ = 22996560.

The previous prime is 45993127. The next prime is 45993131. The reversal of 45993128 is 82139954.

It can be written as a sum of positive squares in only one way, i.e., 33616804 + 12376324 = 5798^2 + 3518^2 .

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 (45993127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2874563 + ... + 2874578.

Almost surely, 2^45993128 is an apocalyptic number.

It is an amenable number.

45993128 is a deficient number, since it is larger than the sum of its proper divisors (40244002).

45993128 is a wasteful number, since it uses less digits than its factorization.

45993128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749147 (or 5749143 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 45993128 is about 6781.8233536417. The cubic root of 45993128 is about 358.2869436732.

The spelling of 45993128 in words is "forty-five million, nine hundred ninety-three thousand, one hundred twenty-eight".