8422090 has 8 divisors (see below), whose sum is σ = 15159780. Its totient is φ = 3368832.

The previous prime is 8422079. The next prime is 8422133. The reversal of 8422090 is 902248.

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 1447209 = 2641^2 + 1203^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421095 + ... + 421114.

Almost surely, 2^8422090 is an apocalyptic number.

8422090 is a deficient number, since it is larger than the sum of its proper divisors (6737690).

8422090 is a wasteful number, since it uses less digits than its factorization.

8422090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842216.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8422090 is about 2902.0837341469. The cubic root of 8422090 is about 203.4573074179.

The spelling of 8422090 in words is "eight million, four hundred twenty-two thousand, ninety".