394867386 has 40 divisors (see below), whose sum is σ = 931370880. Its totient is φ = 124693992.

The previous prime is 394867379. The next prime is 394867397. The reversal of 394867386 is 683768493.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61066 + ... + 67221.

It is an arithmetic number, because the mean of its divisors is an integer number (23284272).

Almost surely, 2^394867386 is an apocalyptic number.

394867386 is an abundant number, since it is smaller than the sum of its proper divisors (536503494).

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

394867386 is a wasteful number, since it uses less digits than its factorization.

394867386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128320 (or 128311 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 394867386 is about 19871.2703670399. The cubic root of 394867386 is about 733.6412715462.

The spelling of 394867386 in words is "three hundred ninety-four million, eight hundred sixty-seven thousand, three hundred eighty-six".