402321332 has 24 divisors (see below), whose sum is σ = 816656064. Its totient is φ = 169849152.

The previous prime is 402321331. The next prime is 402321343. The reversal of 402321332 is 233123204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402321331) 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, 105353 + ... + 109104.

It is an arithmetic number, because the mean of its divisors is an integer number (34027336).

Almost surely, 2^402321332 is an apocalyptic number.

It is an amenable number.

402321332 is an abundant number, since it is smaller than the sum of its proper divisors (414334732).

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

402321332 is a wasteful number, since it uses less digits than its factorization.

402321332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214535 (or 214533 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402321332 is about 20057.9493468300. The cubic root of 402321332 is about 738.2288614362.

Adding to 402321332 its reverse (233123204), we get a palindrome (635444536).

The spelling of 402321332 in words is "four hundred two million, three hundred twenty-one thousand, three hundred thirty-two".