202421132 has 12 divisors (see below), whose sum is σ = 355189296. Its totient is φ = 100938480.

The previous prime is 202421123. The next prime is 202421171. The reversal of 202421132 is 231124202.

It is a super-2 number, since 2×202421132² = 81948629360322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202421132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66344 + ... + 69327.

It is an arithmetic number, because the mean of its divisors is an integer number (29599108).

Almost surely, 2^202421132 is an apocalyptic number.

It is an amenable number.

202421132 is a deficient number, since it is larger than the sum of its proper divisors (152768164).

202421132 is a wasteful number, since it uses less digits than its factorization.

202421132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136048 (or 136046 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 202421132 is about 14227.4780618351. The cubic root of 202421132 is about 587.1538997867.

Adding to 202421132 its reverse (231124202), we get a palindrome (433545334).

The spelling of 202421132 in words is "two hundred two million, four hundred twenty-one thousand, one hundred thirty-two".