45168578 has 16 divisors (see below), whose sum is σ = 83388480. Its totient is φ = 17868816.

The previous prime is 45168577. The next prime is 45168583. The reversal of 45168578 is 87586154.

It is a happy number.

45168578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45168577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123908 + ... + 124271.

It is an arithmetic number, because the mean of its divisors is an integer number (5211780).

Almost surely, 2^45168578 is an apocalyptic number.

45168578 is a deficient number, since it is larger than the sum of its proper divisors (38219902).

45168578 is a wasteful number, since it uses less digits than its factorization.

45168578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248201.

The product of its digits is 268800, while the sum is 44.

The square root of 45168578 is about 6720.7572490010. The cubic root of 45168578 is about 356.1329354567.

The spelling of 45168578 in words is "forty-five million, one hundred sixty-eight thousand, five hundred seventy-eight".