422750549 has 16 divisors (see below), whose sum is σ = 471051504. Its totient is φ = 376896000.

The previous prime is 422750539. The next prime is 422750563. The reversal of 422750549 is 945057224.

It can be written as a sum of positive squares in 8 ways, for example, as 99002500 + 323748049 = 9950^2 + 17993^2 .

It is not a de Polignac number, because 422750549 - 2¹² = 422746453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422750539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49907 + ... + 57759.

It is an arithmetic number, because the mean of its divisors is an integer number (29440719).

Almost surely, 2^422750549 is an apocalyptic number.

It is an amenable number.

422750549 is a deficient number, since it is larger than the sum of its proper divisors (48300955).

422750549 is a wasteful number, since it uses less digits than its factorization.

422750549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 422750549 is about 20560.8985455403. The cubic root of 422750549 is about 750.5184853332.

The spelling of 422750549 in words is "four hundred twenty-two million, seven hundred fifty thousand, five hundred forty-nine".