402220132 has 12 divisors (see below), whose sum is σ = 705358080. Its totient is φ = 200689256.

The previous prime is 402220123. The next prime is 402220157. The reversal of 402220132 is 231022204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103048 + ... + 106879.

It is an arithmetic number, because the mean of its divisors is an integer number (58779840).

Almost surely, 2^402220132 is an apocalyptic number.

It is an amenable number.

402220132 is a deficient number, since it is larger than the sum of its proper divisors (303137948).

402220132 is a wasteful number, since it uses less digits than its factorization.

402220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210410 (or 210408 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 402220132 is about 20055.4264975841. The cubic root of 402220132 is about 738.1669581598.

Adding to 402220132 its reverse (231022204), we get a palindrome (633242336).

The spelling of 402220132 in words is "four hundred two million, two hundred twenty thousand, one hundred thirty-two".