394698722 has 16 divisors (see below), whose sum is σ = 673952832. Its totient is φ = 171607920.

The previous prime is 394698719. The next prime is 394698737. The reversal of 394698722 is 227896493.

It is a super-2 number, since 2×394698722² = 311574162296866568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389513 + ... + 390524.

It is an arithmetic number, because the mean of its divisors is an integer number (42122052).

Almost surely, 2^394698722 is an apocalyptic number.

394698722 is a deficient number, since it is larger than the sum of its proper divisors (279254110).

394698722 is a wasteful number, since it uses less digits than its factorization.

394698722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780073.

The product of its digits is 1306368, while the sum is 50.

The square root of 394698722 is about 19867.0259978689. The cubic root of 394698722 is about 733.5368006124.

The spelling of 394698722 in words is "three hundred ninety-four million, six hundred ninety-eight thousand, seven hundred twenty-two".