420142132 has 12 divisors (see below), whose sum is σ = 758966656. Its totient is φ = 203294520.

The previous prime is 420142109. The next prime is 420142139. The reversal of 420142132 is 231241024.

It is a super-2 number, since 2×420142132² = 353038822163010848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420142139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693998 + ... + 1694245.

Almost surely, 2^420142132 is an apocalyptic number.

It is an amenable number.

420142132 is a deficient number, since it is larger than the sum of its proper divisors (338824524).

420142132 is a wasteful number, since it uses less digits than its factorization.

420142132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388278 (or 3388276 counting only the distinct ones).

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

The square root of 420142132 is about 20497.3689043253. The cubic root of 420142132 is about 748.9717060523.

Adding to 420142132 its reverse (231241024), we get a palindrome (651383156).

The spelling of 420142132 in words is "four hundred twenty million, one hundred forty-two thousand, one hundred thirty-two".