45318578 has 8 divisors (see below), whose sum is σ = 68031900. Its totient is φ = 22641280.

The previous prime is 45318577. The next prime is 45318607. The reversal of 45318578 is 87581354.

It can be written as a sum of positive squares in 2 ways, for example, as 45252529 + 66049 = 6727^2 + 257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (45318577) 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, 5603 + ... + 11046.

Almost surely, 2^45318578 is an apocalyptic number.

45318578 is a deficient number, since it is larger than the sum of its proper divisors (22713322).

45318578 is a wasteful number, since it uses less digits than its factorization.

45318578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18012.

The product of its digits is 134400, while the sum is 41.

The square root of 45318578 is about 6731.9074562861. The cubic root of 45318578 is about 356.5267262849.

The spelling of 45318578 in words is "forty-five million, three hundred eighteen thousand, five hundred seventy-eight".