2801290 has 8 divisors (see below), whose sum is σ = 5042340. Its totient is φ = 1120512.

The previous prime is 2801287. The next prime is 2801299. The reversal of 2801290 is 921082.

It can be written as a sum of positive squares in 2 ways, for example, as 2765569 + 35721 = 1663^2 + 189^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2801299) 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, 140055 + ... + 140074.

2^2801290 is an apocalyptic number.

2801290 is a deficient number, since it is larger than the sum of its proper divisors (2241050).

2801290 is a wasteful number, since it uses less digits than its factorization.

2801290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280136.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2801290 is about 1673.7054699080. The cubic root of 2801290 is about 140.9676165927.

The spelling of 2801290 in words is "two million, eight hundred one thousand, two hundred ninety".