352785978 has 24 divisors (see below), whose sum is σ = 765460800. Its totient is φ = 117427464.

The previous prime is 352785949. The next prime is 352786001. The reversal of 352785978 is 879587253.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 688 + ... + 26571.

It is an arithmetic number, because the mean of its divisors is an integer number (31894200).

Almost surely, 2^352785978 is an apocalyptic number.

352785978 is an abundant number, since it is smaller than the sum of its proper divisors (412674822).

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

352785978 is a wasteful number, since it uses less digits than its factorization.

352785978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27986 (or 27983 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 352785978 is about 18782.5977436562. The cubic root of 352785978 is about 706.5948021833.

The spelling of 352785978 in words is "three hundred fifty-two million, seven hundred eighty-five thousand, nine hundred seventy-eight".