422427745 has 8 divisors (see below), whose sum is σ = 515223720. Its totient is φ = 332401920.

The previous prime is 422427739. The next prime is 422427749. The reversal of 422427745 is 547724224.

It can be written as a sum of positive squares in 4 ways, for example, as 13417569 + 409010176 = 3663^2 + 20224^2 .

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

It is not a de Polignac number, because 422427745 - 2⁹ = 422427233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422427749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692200 + ... + 692809.

It is an arithmetic number, because the mean of its divisors is an integer number (64402965).

Almost surely, 2^422427745 is an apocalyptic number.

It is an amenable number.

422427745 is a deficient number, since it is larger than the sum of its proper divisors (92795975).

422427745 is a wasteful number, since it uses less digits than its factorization.

422427745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385075.

The product of its digits is 125440, while the sum is 37.

The square root of 422427745 is about 20553.0470976933. The cubic root of 422427745 is about 750.3274096424.

The spelling of 422427745 in words is "four hundred twenty-two million, four hundred twenty-seven thousand, seven hundred forty-five".