2631798 has 64 divisors (see below), whose sum is σ = 6612480. Its totient is φ = 769824.

The previous prime is 2631793. The next prime is 2631817. The reversal of 2631798 is 8971362.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16065 + ... + 16227.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

2^2631798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2631798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3306240).

2631798 is an abundant number, since it is smaller than the sum of its proper divisors (3980682).

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

2631798 is a wasteful number, since it uses less digits than its factorization.

2631798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 204 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2631798 is about 1622.2817264581. The cubic root of 2631798 is about 138.0651865945.

The spelling of 2631798 in words is "two million, six hundred thirty-one thousand, seven hundred ninety-eight".