2881790 has 8 divisors (see below), whose sum is σ = 5187240. Its totient is φ = 1152712.

The previous prime is 2881783. The next prime is 2881799. The reversal of 2881790 is 971882.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2881790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881799) 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, 144080 + ... + 144099.

It is an arithmetic number, because the mean of its divisors is an integer number (648405).

2^2881790 is an apocalyptic number.

2881790 is a deficient number, since it is larger than the sum of its proper divisors (2305450).

2881790 is a wasteful number, since it uses less digits than its factorization.

2881790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288186.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 2881790 is about 1697.5835767349. The cubic root of 2881790 is about 142.3052021815.

It can be divided in two parts, 28 and 81790, that added together give a palindrome (81818).

The spelling of 2881790 in words is "two million, eight hundred eighty-one thousand, seven hundred ninety".