42222890 has 8 divisors (see below), whose sum is σ = 76001220. Its totient is φ = 16889152.

The previous prime is 42222889. The next prime is 42222913. The reversal of 42222890 is 9822224.

It can be written as a sum of positive squares in 2 ways, for example, as 42211009 + 11881 = 6497^2 + 109^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111135 + ... + 2111154.

Almost surely, 2^42222890 is an apocalyptic number.

42222890 is a deficient number, since it is larger than the sum of its proper divisors (33778330).

42222890 is a wasteful number, since it uses less digits than its factorization.

42222890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222296.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 42222890 is about 6497.9142807519. The cubic root of 42222890 is about 348.2164780276.

The spelling of 42222890 in words is "forty-two million, two hundred twenty-two thousand, eight hundred ninety".