2235391 has 4 divisors (see below), whose sum is σ = 2239632. Its totient is φ = 2231152.

The previous prime is 2235383. The next prime is 2235403. The reversal of 2235391 is 1935322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2235391 - 2³ = 2235383 is a prime.

It is a Duffinian number.

2235391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235341) 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, 1195 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (559908).

2^2235391 is an apocalyptic number.

2235391 is a deficient number, since it is larger than the sum of its proper divisors (4241).

2235391 is an equidigital number, since it uses as much as digits as its factorization.

2235391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240.

The product of its digits is 1620, while the sum is 25.

The square root of 2235391 is about 1495.1224030159. The cubic root of 2235391 is about 130.7528506411.

The spelling of 2235391 in words is "two million, two hundred thirty-five thousand, three hundred ninety-one".