2291036 has 12 divisors (see below), whose sum is σ = 4373880. Its totient is φ = 1041360.

The previous prime is 2291033. The next prime is 2291041. The reversal of 2291036 is 6301922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25991 + ... + 26078.

It is an arithmetic number, because the mean of its divisors is an integer number (364490).

2^2291036 is an apocalyptic number.

It is an amenable number.

2291036 is a deficient number, since it is larger than the sum of its proper divisors (2082844).

2291036 is a wasteful number, since it uses less digits than its factorization.

2291036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52084 (or 52082 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2291036 is about 1513.6168603712. The cubic root of 2291036 is about 131.8289029006.

Adding to 2291036 its reverse (6301922), we get a palindrome (8592958).

The spelling of 2291036 in words is "two million, two hundred ninety-one thousand, thirty-six".