402332022 has 40 divisors (see below), whose sum is σ = 932619600. Its totient is φ = 129484656.

The previous prime is 402331997. The next prime is 402332023. The reversal of 402332022 is 220233204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402331986 and 402332004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402332023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38122 + ... + 47517.

It is an arithmetic number, because the mean of its divisors is an integer number (23315490).

Almost surely, 2^402332022 is an apocalyptic number.

402332022 is an abundant number, since it is smaller than the sum of its proper divisors (530287578).

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

402332022 is a wasteful number, since it uses less digits than its factorization.

402332022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85682 (or 85673 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 402332022 is about 20058.2158229490. The cubic root of 402332022 is about 738.2353998223.

Adding to 402332022 its reverse (220233204), we get a palindrome (622565226).

It can be divided in two parts, 40233202 and 2, that added together give a palindrome (40233204).

The spelling of 402332022 in words is "four hundred two million, three hundred thirty-two thousand, twenty-two".