393829942 has 12 divisors (see below), whose sum is σ = 644601348. Its totient is φ = 178971300.

The previous prime is 393829913. The next prime is 393829949. The reversal of 393829942 is 249928393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393829949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90967 + ... + 95197.

It is an arithmetic number, because the mean of its divisors is an integer number (53716779).

Almost surely, 2^393829942 is an apocalyptic number.

393829942 is a deficient number, since it is larger than the sum of its proper divisors (250771406).

393829942 is an frugal number, since it uses more digits than its factorization.

393829942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8475 (or 4244 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 393829942 is about 19845.1490798129. The cubic root of 393829942 is about 732.9982039417.

The spelling of 393829942 in words is "three hundred ninety-three million, eight hundred twenty-nine thousand, nine hundred forty-two".