422021332 has 6 divisors (see below), whose sum is σ = 738537338. Its totient is φ = 211010664.

The previous prime is 422021309. The next prime is 422021339. The reversal of 422021332 is 233120224.

It can be written as a sum of positive squares in only one way, i.e., 413471556 + 8549776 = 20334^2 + 2924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422021339) 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 as a sum of consecutive naturals, namely, 52752663 + ... + 52752670.

Almost surely, 2^422021332 is an apocalyptic number.

It is an amenable number.

422021332 is a deficient number, since it is larger than the sum of its proper divisors (316516006).

422021332 is a wasteful number, since it uses less digits than its factorization.

422021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105505337 (or 105505335 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 422021332 is about 20543.1577903690. The cubic root of 422021332 is about 750.0867052351.

Adding to 422021332 its reverse (233120224), we get a palindrome (655141556).

It can be divided in two parts, 42202 and 1332, that added together give a palindrome (43534).

The spelling of 422021332 in words is "four hundred twenty-two million, twenty-one thousand, three hundred thirty-two".