42224890 has 8 divisors (see below), whose sum is σ = 76004820. Its totient is φ = 16889952.

The previous prime is 42224873. The next prime is 42224891. The reversal of 42224890 is 9842224.

It can be written as a sum of positive squares in 2 ways, for example, as 42133081 + 91809 = 6491^2 + 303^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42224891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111235 + ... + 2111254.

Almost surely, 2^42224890 is an apocalyptic number.

42224890 is a deficient number, since it is larger than the sum of its proper divisors (33779930).

42224890 is a wasteful number, since it uses less digits than its factorization.

42224890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222496.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42224890 is about 6498.0681744654. The cubic root of 42224890 is about 348.2219760087.

The spelling of 42224890 in words is "forty-two million, two hundred twenty-four thousand, eight hundred ninety".