4291090 has 8 divisors (see below), whose sum is σ = 7723980. Its totient is φ = 1716432.

The previous prime is 4291073. The next prime is 4291097. The reversal of 4291090 is 901924.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 358801 = 1983^2 + 599^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4291097) 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, 214545 + ... + 214564.

Almost surely, 2^4291090 is an apocalyptic number.

4291090 is a deficient number, since it is larger than the sum of its proper divisors (3432890).

4291090 is a wasteful number, since it uses less digits than its factorization.

4291090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429116.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 4291090 is about 2071.4946294886. The cubic root of 4291090 is about 162.5009388506.

The spelling of 4291090 in words is "four million, two hundred ninety-one thousand, ninety".