445747316 has 18 divisors (see below), whose sum is σ = 907414578. Its totient is φ = 191034480.

The previous prime is 445747307. The next prime is 445747339. The reversal of 445747316 is 613747544.

It can be written as a sum of positive squares in only one way, i.e., 426422500 + 19324816 = 20650^2 + 4396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136915 + ... + 1137306.

It is an arithmetic number, because the mean of its divisors is an integer number (50411921).

Almost surely, 2^445747316 is an apocalyptic number.

It is an amenable number.

445747316 is an abundant number, since it is smaller than the sum of its proper divisors (461667262).

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

445747316 is a wasteful number, since it uses less digits than its factorization.

445747316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274239 (or 2274230 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 445747316 is about 21112.7287672627. The cubic root of 445747316 is about 763.8878086951.

The spelling of 445747316 in words is "four hundred forty-five million, seven hundred forty-seven thousand, three hundred sixteen".