45504140 has 48 divisors (see below), whose sum is σ = 104709024. Its totient is φ = 16473600.

The previous prime is 45504133. The next prime is 45504167. The reversal of 45504140 is 4140554.

45504140 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 15 ways as a sum of consecutive naturals, for example, 87080 + ... + 87600.

It is an arithmetic number, because the mean of its divisors is an integer number (2181438).

Almost surely, 2^45504140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45504140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52354512).

45504140 is an abundant number, since it is smaller than the sum of its proper divisors (59204884).

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

45504140 is a wasteful number, since it uses less digits than its factorization.

45504140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45504140 is about 6745.6756518528. The cubic root of 45504140 is about 357.0126765161.

Adding to 45504140 its reverse (4140554), we get a palindrome (49644694).

The spelling of 45504140 in words is "forty-five million, five hundred four thousand, one hundred forty".