393849772 has 24 divisors (see below), whose sum is σ = 709198560. Its totient is φ = 191264640.

The previous prime is 393849751. The next prime is 393849787. The reversal of 393849772 is 277948393.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32313 + ... + 42799.

It is an arithmetic number, because the mean of its divisors is an integer number (29549940).

Almost surely, 2^393849772 is an apocalyptic number.

It is an amenable number.

393849772 is a deficient number, since it is larger than the sum of its proper divisors (315348788).

393849772 is a wasteful number, since it uses less digits than its factorization.

393849772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10761 (or 10759 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The square root of 393849772 is about 19845.6486918417. The cubic root of 393849772 is about 733.0105062994.

The spelling of 393849772 in words is "three hundred ninety-three million, eight hundred forty-nine thousand, seven hundred seventy-two".