2291146 has 16 divisors (see below), whose sum is σ = 4038048. Its totient is φ = 961200.

The previous prime is 2291143. The next prime is 2291167. The reversal of 2291146 is 6411922.

It is a self number, because there is not a number n which added to its sum of digits gives 2291146.

It is not an unprimeable number, because it can be changed into a prime (2291143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3720 + ... + 4291.

It is an arithmetic number, because the mean of its divisors is an integer number (252378).

2^2291146 is an apocalyptic number.

2291146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2291146 is a deficient number, since it is larger than the sum of its proper divisors (1746902).

2291146 is a wasteful number, since it uses less digits than its factorization.

2291146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037.

The product of its digits is 864, while the sum is 25.

The square root of 2291146 is about 1513.6531967396. The cubic root of 2291146 is about 131.8310127099.

The spelling of 2291146 in words is "two million, two hundred ninety-one thousand, one hundred forty-six".