402522 has 16 divisors (see below), whose sum is σ = 816960. Its totient is φ = 132192.

The previous prime is 402517. The next prime is 402527. The reversal of 402522 is 225204.

It is an interprime number because it is at equal distance from previous prime (402517) and next prime (402527).

It is not an unprimeable number, because it can be changed into a prime (402527) 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, 22 + ... + 897.

It is an arithmetic number, because the mean of its divisors is an integer number (51060).

2⁴⁰²⁵²² is an apocalyptic number.

402522 is an abundant number, since it is smaller than the sum of its proper divisors (414438).

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

402522 is a wasteful number, since it uses less digits than its factorization.

402522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 402522 is about 634.4462152145. The cubic root of 402522 is about 73.8351577845.

Adding to 402522 its reverse (225204), we get a palindrome (627726).

The spelling of 402522 in words is "four hundred two thousand, five hundred twenty-two".