2631996 has 36 divisors (see below), whose sum is σ = 6722352. Its totient is φ = 868224.

The previous prime is 2631989. The next prime is 2632001. The reversal of 2631996 is 6991362.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 2²¹ + 6⁴ + 3¹² + 1 + 9² + 9³ + 6⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2631996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3745 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

2^2631996 is an apocalyptic number.

It is an amenable number.

2631996 is an abundant number, since it is smaller than the sum of its proper divisors (4090356).

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

2631996 is a wasteful number, since it uses less digits than its factorization.

2631996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 765 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 2631996 is about 1622.3427504692. The cubic root of 2631996 is about 138.0686488943.

The spelling of 2631996 in words is "two million, six hundred thirty-one thousand, nine hundred ninety-six".