402022 has 4 divisors (see below), whose sum is σ = 603036. Its totient is φ = 201010.

The previous prime is 401993. The next prime is 402023. The reversal of 402022 is 220204.

It is a happy number.

402022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100504 + ... + 100507.

It is an arithmetic number, because the mean of its divisors is an integer number (150759).

2⁴⁰²⁰²² is an apocalyptic number.

402022 is a deficient number, since it is larger than the sum of its proper divisors (201014).

402022 is a wasteful number, since it uses less digits than its factorization.

402022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201013.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 402022 is about 634.0520483367. The cubic root of 402022 is about 73.8045732239.

Adding to 402022 its reverse (220204), we get a palindrome (622226).

It can be divided in two parts, 40202 and 2, that added together give a palindrome (40204).

The spelling of 402022 in words is "four hundred two thousand, twenty-two", and thus it is an iban number.