2491016 has 16 divisors (see below), whose sum is σ = 5095440. Its totient is φ = 1132240.

The previous prime is 2491009. The next prime is 2491031. The reversal of 2491016 is 6101942.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2490982 and 2491000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14066 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (318465).

2^2491016 is an apocalyptic number.

It is an amenable number.

2491016 is an abundant number, since it is smaller than the sum of its proper divisors (2604424).

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

2491016 is a wasteful number, since it uses less digits than its factorization.

2491016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28324 (or 28320 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2491016 is about 1578.2952828923. The cubic root of 2491016 is about 135.5581101771.

Adding to 2491016 its reverse (6101942), we get a palindrome (8592958).

The spelling of 2491016 in words is "two million, four hundred ninety-one thousand, sixteen".