402232120 has 32 divisors (see below), whose sum is σ = 905703120. Its totient is φ = 160771840.

The previous prime is 402232091. The next prime is 402232151. The reversal of 402232120 is 21232204.

It is a junction number, because it is equal to n+sod(n) for n = 402232094 and 402232103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65919 + ... + 71761.

Almost surely, 2^402232120 is an apocalyptic number.

402232120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402232120 is an abundant number, since it is smaller than the sum of its proper divisors (503471000).

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

402232120 is a wasteful number, since it uses less digits than its factorization.

402232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575 (or 7571 counting only the distinct ones).

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

The square root of 402232120 is about 20055.7253670866. The cubic root of 402232120 is about 738.1742916711.

Adding to 402232120 its reverse (21232204), we get a palindrome (423464324).

The spelling of 402232120 in words is "four hundred two million, two hundred thirty-two thousand, one hundred twenty".