398310222 has 8 divisors (see below), whose sum is σ = 796620456. Its totient is φ = 132770072.

The previous prime is 398310191. The next prime is 398310259. The reversal of 398310222 is 222013893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

398310222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 398310222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33192513 + ... + 33192524.

It is an arithmetic number, because the mean of its divisors is an integer number (99577557).

Almost surely, 2^398310222 is an apocalyptic number.

398310222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

398310222 is a wasteful number, since it uses less digits than its factorization.

398310222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66385042.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 398310222 is about 19957.7108406751. The cubic root of 398310222 is about 735.7673027268.

The spelling of 398310222 in words is "three hundred ninety-eight million, three hundred ten thousand, two hundred twenty-two".