355422294728 has 36 divisors (see below), whose sum is σ = 671960412945. Its totient is φ = 176244968640.

The previous prime is 355422294707. The next prime is 355422294751. The reversal of 355422294728 is 827492224553.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 230133197284 + 125289097444 = 479722^2 + 353962^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=421558.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 355422294728.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 220895588 + ... + 220897196.

Almost surely, 2^355422294728 is an apocalyptic number.

It is an amenable number.

355422294728 is a deficient number, since it is larger than the sum of its proper divisors (316538118217).

355422294728 is an frugal number, since it uses more digits than its factorization.

355422294728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486 (or 1742 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 53.

The spelling of 355422294728 in words is "three hundred fifty-five billion, four hundred twenty-two million, two hundred ninety-four thousand, seven hundred twenty-eight".