45709188 has 96 divisors (see below), whose sum is σ = 129669120. Its totient is φ = 12249600.

The previous prime is 45709187. The next prime is 45709189. The reversal of 45709188 is 88190754.

It is an interprime number because it is at equal distance from previous prime (45709187) and next prime (45709189).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (45709187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113788 + ... + 114188.

It is an arithmetic number, because the mean of its divisors is an integer number (1350720).

Almost surely, 2^45709188 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 45709188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64834560).

45709188 is an abundant number, since it is smaller than the sum of its proper divisors (83959932).

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

45709188 is a wasteful number, since it uses less digits than its factorization.

45709188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 45709188 is about 6760.8570462627. The cubic root of 45709188 is about 357.5481226888.

The spelling of 45709188 in words is "forty-five million, seven hundred nine thousand, one hundred eighty-eight".