45312570 has 48 divisors (see below), whose sum is σ = 119157480. Its totient is φ = 11945472.

The previous prime is 45312551. The next prime is 45312571. The reversal of 45312570 is 7521354.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19210689 + 26101881 = 4383^2 + 5109^2 .

It is not an unprimeable number, because it can be changed into a prime (45312571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5182 + ... + 10838.

Almost surely, 2^45312570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45312570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59578740).

45312570 is an abundant number, since it is smaller than the sum of its proper divisors (73844910).

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

45312570 is a wasteful number, since it uses less digits than its factorization.

45312570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759 (or 5756 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45312570 is about 6731.4612083856. The cubic root of 45312570 is about 356.5109703681.

The spelling of 45312570 in words is "forty-five million, three hundred twelve thousand, five hundred seventy".