45561870 has 96 divisors (see below), whose sum is σ = 127135008. Its totient is φ = 11280384.

The previous prime is 45561869. The next prime is 45561877. The reversal of 45561870 is 7816554.

45561870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45561877) 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 47 ways as a sum of consecutive naturals, for example, 148257 + ... + 148563.

It is an arithmetic number, because the mean of its divisors is an integer number (1324323).

Almost surely, 2^45561870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45561870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63567504).

45561870 is an abundant number, since it is smaller than the sum of its proper divisors (81573138).

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

45561870 is a wasteful number, since it uses less digits than its factorization.

45561870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 45561870 is about 6749.9533331720. The cubic root of 45561870 is about 357.1635904916.

The spelling of 45561870 in words is "forty-five million, five hundred sixty-one thousand, eight hundred seventy".