42284890 has 8 divisors (see below), whose sum is σ = 76112820. Its totient is φ = 16913952.

The previous prime is 42284863. The next prime is 42284897. The reversal of 42284890 is 9848224.

42284890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41512249 + 772641 = 6443^2 + 879^2 .

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 (42284897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2114235 + ... + 2114254.

Almost surely, 2^42284890 is an apocalyptic number.

42284890 is a deficient number, since it is larger than the sum of its proper divisors (33827930).

42284890 is a wasteful number, since it uses less digits than its factorization.

42284890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228496.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 42284890 is about 6502.6832923033. The cubic root of 42284890 is about 348.3868347777.

The spelling of 42284890 in words is "forty-two million, two hundred eighty-four thousand, eight hundred ninety".