399162386 has 16 divisors (see below), whose sum is σ = 706352640. Its totient is φ = 165551040.

The previous prime is 399162383. The next prime is 399162391. The reversal of 399162386 is 683261993.

It is a super-2 number, since 2×399162386² = 318661220794425992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 399162386.

It is not an unprimeable number, because it can be changed into a prime (399162383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459431 + ... + 460298.

It is an arithmetic number, because the mean of its divisors is an integer number (44147040).

Almost surely, 2^399162386 is an apocalyptic number.

399162386 is a deficient number, since it is larger than the sum of its proper divisors (307190254).

399162386 is a wasteful number, since it uses less digits than its factorization.

399162386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919769.

The product of its digits is 419904, while the sum is 47.

The square root of 399162386 is about 19979.0486760506. The cubic root of 399162386 is about 736.2916409296.

The spelling of 399162386 in words is "three hundred ninety-nine million, one hundred sixty-two thousand, three hundred eighty-six".