4291890 has 16 divisors (see below), whose sum is σ = 10300608. Its totient is φ = 1144496.

The previous prime is 4291867. The next prime is 4291933. The reversal of 4291890 is 981924.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71502 + ... + 71561.

It is an arithmetic number, because the mean of its divisors is an integer number (643788).

Almost surely, 2^4291890 is an apocalyptic number.

4291890 is an abundant number, since it is smaller than the sum of its proper divisors (6008718).

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

4291890 is a wasteful number, since it uses less digits than its factorization.

4291890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143073.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 4291890 is about 2071.6877177799. The cubic root of 4291890 is about 162.5110367257.

The spelling of 4291890 in words is "four million, two hundred ninety-one thousand, eight hundred ninety".