402130422 has 24 divisors (see below), whose sum is σ = 885568320. Its totient is φ = 131845680.

The previous prime is 402130409. The next prime is 402130423. The reversal of 402130422 is 224031204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402130395 and 402130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402130423) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 182022 + ... + 184217.

It is an arithmetic number, because the mean of its divisors is an integer number (36898680).

Almost surely, 2^402130422 is an apocalyptic number.

402130422 is an abundant number, since it is smaller than the sum of its proper divisors (483437898).

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

402130422 is a wasteful number, since it uses less digits than its factorization.

402130422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366308 (or 366305 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402130422 is about 20053.1898210734. The cubic root of 402130422 is about 738.1120745473.

Adding to 402130422 its reverse (224031204), we get a palindrome (626161626).

It can be divided in two parts, 4021 and 30422, that added together give a palindrome (34443).

The spelling of 402130422 in words is "four hundred two million, one hundred thirty thousand, four hundred twenty-two".