2291493 has 8 divisors (see below), whose sum is σ = 3160800. Its totient is φ = 1474928.

The previous prime is 2291491. The next prime is 2291539. The reversal of 2291493 is 3941922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2291493 - 2¹ = 2291491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2291493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291491) 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, 13083 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (395100).

2^2291493 is an apocalyptic number.

It is an amenable number.

2291493 is a deficient number, since it is larger than the sum of its proper divisors (869307).

2291493 is a wasteful number, since it uses less digits than its factorization.

2291493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26371.

The product of its digits is 3888, while the sum is 30.

The square root of 2291493 is about 1513.7678157498. The cubic root of 2291493 is about 131.8376677568.

The spelling of 2291493 in words is "two million, two hundred ninety-one thousand, four hundred ninety-three".