45168678 has 20 divisors (see below), whose sum is σ = 101211660. Its totient is φ = 15056172.

The previous prime is 45168671. The next prime is 45168679. The reversal of 45168678 is 87686154.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45168671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 139248 + ... + 139571.

It is an arithmetic number, because the mean of its divisors is an integer number (5060583).

Almost surely, 2^45168678 is an apocalyptic number.

45168678 is an abundant number, since it is smaller than the sum of its proper divisors (56042982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45168678 is a wasteful number, since it uses less digits than its factorization.

45168678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278833 (or 278824 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 45168678 is about 6720.7646886348. The cubic root of 45168678 is about 356.1331982741.

The spelling of 45168678 in words is "forty-five million, one hundred sixty-eight thousand, six hundred seventy-eight".