402421132 has 6 divisors (see below), whose sum is σ = 704236988. Its totient is φ = 201210564.

The previous prime is 402421111. The next prime is 402421153. The reversal of 402421132 is 231124204.

It is an interprime number because it is at equal distance from previous prime (402421111) and next prime (402421153).

It is a super-2 number, since 2×402421132² = 323885534960322848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50302638 + ... + 50302645.

Almost surely, 2^402421132 is an apocalyptic number.

It is an amenable number.

402421132 is a deficient number, since it is larger than the sum of its proper divisors (301815856).

402421132 is a wasteful number, since it uses less digits than its factorization.

402421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100605287 (or 100605285 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402421132 is about 20060.4369842733. The cubic root of 402421132 is about 738.2898981775.

Adding to 402421132 its reverse (231124204), we get a palindrome (633545336).

The spelling of 402421132 in words is "four hundred two million, four hundred twenty-one thousand, one hundred thirty-two".