352398645 has 12 divisors (see below), whose sum is σ = 610824396. Its totient is φ = 187945920.

The previous prime is 352398637. The next prime is 352398679. The reversal of 352398645 is 546893253.

352398645 is a `hidden beast` number, since 3 + 523 + 9 + 86 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 282542481 = 8358^2 + 16809^2 .

It is not a de Polignac number, because 352398645 - 2³ = 352398637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 7831081 = 352398645 / (3 + 5 + 2 + 3 + 9 + 8 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 352398645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3915496 + ... + 3915585.

It is an arithmetic number, because the mean of its divisors is an integer number (50902033).

Almost surely, 2^352398645 is an apocalyptic number.

It is an amenable number.

352398645 is a deficient number, since it is larger than the sum of its proper divisors (258425751).

352398645 is a wasteful number, since it uses less digits than its factorization.

352398645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7831092 (or 7831089 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 352398645 is about 18772.2839580057. The cubic root of 352398645 is about 706.3361111491.

The spelling of 352398645 in words is "three hundred fifty-two million, three hundred ninety-eight thousand, six hundred forty-five".