4120890 has 16 divisors (see below), whose sum is σ = 9890208. Its totient is φ = 1098896.

The previous prime is 4120889. The next prime is 4120903. The reversal of 4120890 is 980214.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4120890.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68652 + ... + 68711.

It is an arithmetic number, because the mean of its divisors is an integer number (618138).

Almost surely, 2^4120890 is an apocalyptic number.

4120890 is an abundant number, since it is smaller than the sum of its proper divisors (5769318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4120890 is a wasteful number, since it uses less digits than its factorization.

4120890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137373.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4120890 is about 2029.9975369443. The cubic root of 4120890 is about 160.3234342902.

The spelling of 4120890 in words is "four million, one hundred twenty thousand, eight hundred ninety".