4289090 has 16 divisors (see below), whose sum is σ = 8314488. Its totient is φ = 1583616.

The previous prime is 4289057. The next prime is 4289099. The reversal of 4289090 is 909824.

It can be written as a sum of positive squares in 4 ways, for example, as 1530169 + 2758921 = 1237^2 + 1661^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4289099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16367 + ... + 16626.

Almost surely, 2^4289090 is an apocalyptic number.

4289090 is a deficient number, since it is larger than the sum of its proper divisors (4025398).

4289090 is a wasteful number, since it uses less digits than its factorization.

4289090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33013.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 4289090 is about 2071.0118300000. The cubic root of 4289090 is about 162.4756886707.

The spelling of 4289090 in words is "four million, two hundred eighty-nine thousand, ninety".