45444078 has 40 divisors (see below), whose sum is σ = 105124800. Its totient is φ = 14657760.

The previous prime is 45444071. The next prime is 45444079. The reversal of 45444078 is 87044454.

45444078 is a `hidden beast` number, since 4 + 544 + 40 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 498 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (2628120).

Almost surely, 2^45444078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45444078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52562400).

45444078 is an abundant number, since it is smaller than the sum of its proper divisors (59680722).

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

45444078 is a wasteful number, since it uses less digits than its factorization.

45444078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9094 (or 9085 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 45444078 is about 6741.2222927300. Note that the first 4 decimals coincide. The cubic root of 45444078 is about 356.8555308393.

The spelling of 45444078 in words is "forty-five million, four hundred forty-four thousand, seventy-eight".