356808820 has 12 divisors (see below), whose sum is σ = 749298564. Its totient is φ = 142723520.

The previous prime is 356808817. The next prime is 356808833. The reversal of 356808820 is 28808653.

It can be written as a sum of positive squares in 2 ways, for example, as 272976484 + 83832336 = 16522^2 + 9156^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8920201 + ... + 8920240.

It is an arithmetic number, because the mean of its divisors is an integer number (62441547).

Almost surely, 2^356808820 is an apocalyptic number.

It is an amenable number.

356808820 is an abundant number, since it is smaller than the sum of its proper divisors (392489744).

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

356808820 is a wasteful number, since it uses less digits than its factorization.

356808820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17840450 (or 17840448 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 356808820 is about 18889.3837909022. The cubic root of 356808820 is about 709.2704401771.

The spelling of 356808820 in words is "three hundred fifty-six million, eight hundred eight thousand, eight hundred twenty".