422246890 has 16 divisors (see below), whose sum is σ = 818509608. Its totient is φ = 155906496.

The previous prime is 422246843. The next prime is 422246897. The reversal of 422246890 is 98642224.

It can be written as a sum of positive squares in 4 ways, for example, as 262148481 + 160098409 = 16191^2 + 12653^2 .

It is a super-2 number, since 2×422246890² = 356584872229344200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422246897) 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 7 ways as a sum of consecutive naturals, for example, 1623897 + ... + 1624156.

Almost surely, 2^422246890 is an apocalyptic number.

422246890 is a deficient number, since it is larger than the sum of its proper divisors (396262718).

422246890 is a wasteful number, since it uses less digits than its factorization.

422246890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248073.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 422246890 is about 20548.6469140914. The cubic root of 422246890 is about 750.2203145349.

The spelling of 422246890 in words is "four hundred twenty-two million, two hundred forty-six thousand, eight hundred ninety".