393420982 has 16 divisors (see below), whose sum is σ = 595563840. Its totient is φ = 194905408.

The previous prime is 393420959. The next prime is 393420991. The reversal of 393420982 is 289024393.

It is a congruent 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, 196008 + ... + 198004.

It is an arithmetic number, because the mean of its divisors is an integer number (37222740).

Almost surely, 2^393420982 is an apocalyptic number.

393420982 is a deficient number, since it is larger than the sum of its proper divisors (202142858).

393420982 is a wasteful number, since it uses less digits than its factorization.

393420982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 393420982 is about 19834.8426260457. The cubic root of 393420982 is about 732.7443966216.

The spelling of 393420982 in words is "three hundred ninety-three million, four hundred twenty thousand, nine hundred eighty-two".