2838990 has 64 divisors (see below), whose sum is σ = 8501760. Its totient is φ = 589440.

The previous prime is 2838937. The next prime is 2839007. The reversal of 2838990 is 998382.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1696 + ... + 2924.

It is an arithmetic number, because the mean of its divisors is an integer number (132840).

2^2838990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2838990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4250880).

2838990 is an abundant number, since it is smaller than the sum of its proper divisors (5662770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2838990 is a wasteful number, since it uses less digits than its factorization.

2838990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2838990 is about 1684.9302656193. The cubic root of 2838990 is about 141.5971854591.

It can be divided in two parts, 2838 and 990, that added together give a triangular number (3828 = T₈₇).

The spelling of 2838990 in words is "two million, eight hundred thirty-eight thousand, nine hundred ninety".