4238890 has 16 divisors (see below), whose sum is σ = 7756200. Its totient is φ = 1667520.

The previous prime is 4238873. The next prime is 4238911. The reversal of 4238890 is 988324.

It can be written as a sum of positive squares in 4 ways, for example, as 3066001 + 1172889 = 1751^2 + 1083^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865 + ... + 4084.

Almost surely, 2^4238890 is an apocalyptic number.

4238890 is a deficient number, since it is larger than the sum of its proper divisors (3517310).

4238890 is a wasteful number, since it uses less digits than its factorization.

4238890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 4238890 is about 2058.8564787279. The cubic root of 4238890 is about 161.8393214550.

The spelling of 4238890 in words is "four million, two hundred thirty-eight thousand, eight hundred ninety".