402124222 has 16 divisors (see below), whose sum is σ = 641706192. Its totient is φ = 188334720.

The previous prime is 402124211. The next prime is 402124241. The reversal of 402124222 is 222421204.

It is a self number, because there is not a number n which added to its sum of digits gives 402124222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20853 + ... + 35200.

It is an arithmetic number, because the mean of its divisors is an integer number (40106637).

Almost surely, 2^402124222 is an apocalyptic number.

402124222 is a deficient number, since it is larger than the sum of its proper divisors (239581970).

402124222 is a wasteful number, since it uses less digits than its factorization.

402124222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56283.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 402124222 is about 20053.0352316052. The cubic root of 402124222 is about 738.1082811525.

Adding to 402124222 its reverse (222421204), we get a palindrome (624545426).

The spelling of 402124222 in words is "four hundred two million, one hundred twenty-four thousand, two hundred twenty-two".