396222294 has 16 divisors (see below), whose sum is σ = 853402032. Its totient is φ = 121914528.

The previous prime is 396222289. The next prime is 396222317. The reversal of 396222294 is 492222693.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

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, 2539809 + ... + 2539964.

It is an arithmetic number, because the mean of its divisors is an integer number (53337627).

Almost surely, 2^396222294 is an apocalyptic number.

396222294 is an abundant number, since it is smaller than the sum of its proper divisors (457179738).

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

396222294 is a wasteful number, since it uses less digits than its factorization.

396222294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079791.

The product of its digits is 93312, while the sum is 39.

The square root of 396222294 is about 19905.3333054234. Note that the first 4 decimals coincide. The cubic root of 396222294 is about 734.4794277669.

It can be divided in two parts, 3 and 96222294, that multiplied together give a palindrome (288666882).

The spelling of 396222294 in words is "three hundred ninety-six million, two hundred twenty-two thousand, two hundred ninety-four".