422138674 has 8 divisors (see below), whose sum is σ = 655042860. Its totient is φ = 203791056.

The previous prime is 422138663. The next prime is 422138677. The reversal of 422138674 is 476831224.

It can be written as a sum of positive squares in 2 ways, for example, as 419963049 + 2175625 = 20493^2 + 1475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (422138677) 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, 3639069 + ... + 3639184.

Almost surely, 2^422138674 is an apocalyptic number.

422138674 is a deficient number, since it is larger than the sum of its proper divisors (232904186).

422138674 is a wasteful number, since it uses less digits than its factorization.

422138674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278284.

The product of its digits is 64512, while the sum is 37.

The square root of 422138674 is about 20546.0135792810. The cubic root of 422138674 is about 750.1562187179.

Adding to 422138674 its reverse (476831224), we get a palindrome (898969898).

The spelling of 422138674 in words is "four hundred twenty-two million, one hundred thirty-eight thousand, six hundred seventy-four".