45740772 has 144 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 11450880.

The previous prime is 45740759. The next prime is 45740797. The reversal of 45740772 is 27704754.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80104 + ... + 80672.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400).

Almost surely, 2^45740772 is an apocalyptic number.

45740772 is a gapful number since it is divisible by the number (42) 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 45740772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74692800).

45740772 is an abundant number, since it is smaller than the sum of its proper divisors (103644828).

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

45740772 is a wasteful number, since it uses less digits than its factorization.

45740772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 45740772 is about 6763.1924414436. The cubic root of 45740772 is about 357.6304562442.

The spelling of 45740772 in words is "forty-five million, seven hundred forty thousand, seven hundred seventy-two".