393241892 has 12 divisors (see below), whose sum is σ = 728654220. Its totient is φ = 185054976.

The previous prime is 393241889. The next prime is 393241907. The reversal of 393241892 is 298142393.

It can be written as a sum of positive squares in 2 ways, for example, as 240126016 + 153115876 = 15496^2 + 12374^2 .

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, 2891417 + ... + 2891552.

It is an arithmetic number, because the mean of its divisors is an integer number (60721185).

Almost surely, 2^393241892 is an apocalyptic number.

It is an amenable number.

393241892 is a deficient number, since it is larger than the sum of its proper divisors (335412328).

393241892 is a wasteful number, since it uses less digits than its factorization.

393241892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782990 (or 5782988 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 393241892 is about 19830.3275817622. The cubic root of 393241892 is about 732.6331950359.

The spelling of 393241892 in words is "three hundred ninety-three million, two hundred forty-one thousand, eight hundred ninety-two".