402022322 has 16 divisors (see below), whose sum is σ = 670371072. Its totient is φ = 179562960.

The previous prime is 402022321. The next prime is 402022337. The reversal of 402022322 is 223220204.

It is a self number, because there is not a number n which added to its sum of digits gives 402022322.

It is not an unprimeable number, because it can be changed into a prime (402022321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248588 + ... + 250199.

It is an arithmetic number, because the mean of its divisors is an integer number (41898192).

Almost surely, 2^402022322 is an apocalyptic number.

402022322 is a deficient number, since it is larger than the sum of its proper divisors (268348750).

402022322 is a wasteful number, since it uses less digits than its factorization.

402022322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498833.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 402022322 is about 20050.4943081212. The cubic root of 402022322 is about 738.0459292856.

Adding to 402022322 its reverse (223220204), we get a palindrome (625242526).

It can be divided in two parts, 40202 and 2322, that added together give a palindrome (42524).

The spelling of 402022322 in words is "four hundred two million, twenty-two thousand, three hundred twenty-two".