45019328 has 28 divisors (see below), whose sum is σ = 89748360. Its totient is φ = 22405632.

The previous prime is 45019327. The next prime is 45019361. The reversal of 45019328 is 82391054.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 45019294 and 45019303.

It is not an unprimeable number, because it can be changed into a prime (45019327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13403 + ... + 16421.

Almost surely, 2^45019328 is an apocalyptic number.

It is an amenable number.

45019328 is a deficient number, since it is larger than the sum of its proper divisors (44729032).

45019328 is a wasteful number, since it uses less digits than its factorization.

45019328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 45019328 is about 6709.6444019039. The cubic root of 45019328 is about 355.7402473331.

The spelling of 45019328 in words is "forty-five million, nineteen thousand, three hundred twenty-eight".