2287090 has 32 divisors (see below), whose sum is σ = 4512816. Its totient is φ = 829440.

The previous prime is 2287069. The next prime is 2287093. The reversal of 2287090 is 907822.

It can be written as a sum of positive squares in 8 ways, for example, as 915849 + 1371241 = 957^2 + 1171^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2287093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9370 + ... + 9610.

2^2287090 is an apocalyptic number.

2287090 is a deficient number, since it is larger than the sum of its proper divisors (2225726).

2287090 is a wasteful number, since it uses less digits than its factorization.

2287090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2287090 is about 1512.3127983324. The cubic root of 2287090 is about 131.7531735808.

The spelling of 2287090 in words is "two million, two hundred eighty-seven thousand, ninety".