402022522 has 16 divisors (see below), whose sum is σ = 659731392. Its totient is φ = 182216320.

The previous prime is 402022487. The next prime is 402022529. The reversal of 402022522 is 225220204.

It is a self number, because there is not a number n which added to its sum of digits gives 402022522.

It is not an unprimeable number, because it can be changed into a prime (402022529) by changing a digit.

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, 18118 + ... + 33649.

It is an arithmetic number, because the mean of its divisors is an integer number (41233212).

Almost surely, 2^402022522 is an apocalyptic number.

402022522 is a deficient number, since it is larger than the sum of its proper divisors (257708870).

402022522 is a wasteful number, since it uses less digits than its factorization.

402022522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52133.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 402022522 is about 20050.4992955288. The cubic root of 402022522 is about 738.0460516745.

Adding to 402022522 its reverse (225220204), we get a palindrome (627242726).

It can be divided in two parts, 40202 and 2522, that added together give a palindrome (42724).

The spelling of 402022522 in words is "four hundred two million, twenty-two thousand, five hundred twenty-two".