2799390 has 64 divisors (see below), whose sum is σ = 7776000. Its totient is φ = 637440.

The previous prime is 2799371. The next prime is 2799397. The reversal of 2799390 is 939972.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5361 + ... + 5859.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

2^2799390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2799390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3888000).

2799390 is an abundant number, since it is smaller than the sum of its proper divisors (4976610).

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

2799390 is a wasteful number, since it uses less digits than its factorization.

2799390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 2799390 is about 1673.1377707768. The cubic root of 2799390 is about 140.9357385355.

It can be divided in two parts, 279 and 9390, that added together give a palindrome (9669).

The spelling of 2799390 in words is "two million, seven hundred ninety-nine thousand, three hundred ninety".