2291382 has 16 divisors (see below), whose sum is σ = 5092080. Its totient is φ = 763776.

The previous prime is 2291369. The next prime is 2291389. The reversal of 2291382 is 2831922.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21163 + ... + 21270.

It is an arithmetic number, because the mean of its divisors is an integer number (318255).

2^2291382 is an apocalyptic number.

2291382 is an abundant number, since it is smaller than the sum of its proper divisors (2800698).

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

2291382 is a wasteful number, since it uses less digits than its factorization.

2291382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42444 (or 42438 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2291382 is about 1513.7311518232. The cubic root of 2291382 is about 131.8355389820.

The spelling of 2291382 in words is "two million, two hundred ninety-one thousand, three hundred eighty-two".