45440140 has 24 divisors (see below), whose sum is σ = 95608800. Its totient is φ = 18140928.

The previous prime is 45440119. The next prime is 45440159. The reversal of 45440140 is 4104454.

45440140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 10084 + ... + 13876.

It is an arithmetic number, because the mean of its divisors is an integer number (3983700).

Almost surely, 2^45440140 is an apocalyptic number.

It is an amenable number.

45440140 is an abundant number, since it is smaller than the sum of its proper divisors (50168660).

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

45440140 is a wasteful number, since it uses less digits than its factorization.

45440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401 (or 4399 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45440140 is about 6740.9302028726. The cubic root of 45440140 is about 356.8452226559.

Adding to 45440140 its reverse (4104454), we get a palindrome (49544594).

The spelling of 45440140 in words is "forty-five million, four hundred forty thousand, one hundred forty".