45570640 has 60 divisors (see below), whose sum is σ = 108416052. Its totient is φ = 17812480.

The previous prime is 45570617. The next prime is 45570647. The reversal of 45570640 is 4607554.

It is a happy number.

45570640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 39037504 = 2556^2 + 6248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45570647) 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 11 ways as a sum of consecutive naturals, for example, 403224 + ... + 403336.

Almost surely, 2^45570640 is an apocalyptic number.

45570640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45570640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54208026).

45570640 is an abundant number, since it is smaller than the sum of its proper divisors (62845412).

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

45570640 is a wasteful number, since it uses less digits than its factorization.

45570640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 45570640 is about 6750.6029360347. The cubic root of 45570640 is about 357.1865052939.

The spelling of 45570640 in words is "forty-five million, five hundred seventy thousand, six hundred forty".