399334193368 has 32 divisors (see below), whose sum is σ = 828009268560. Its totient is φ = 179029025280.

The previous prime is 399334193333. The next prime is 399334193393. The reversal of 399334193368 is 863391433993.

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, 31075005 + ... + 31087852.

Almost surely, 2^399334193368 is an apocalyptic number.

It is an amenable number.

399334193368 is an abundant number, since it is smaller than the sum of its proper divisors (428675075192).

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

399334193368 is a wasteful number, since it uses less digits than its factorization.

399334193368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62162947 (or 62162943 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 61.

The spelling of 399334193368 in words is "three hundred ninety-nine billion, three hundred thirty-four million, one hundred ninety-three thousand, three hundred sixty-eight".