2291594 has 4 divisors (see below), whose sum is σ = 3437394. Its totient is φ = 1145796.

The previous prime is 2291591. The next prime is 2291623. The reversal of 2291594 is 4951922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4951922 = 2 ⋅2475961.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 26569 = 1505^2 + 163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2291594.

It is not an unprimeable number, because it can be changed into a prime (2291591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572897 + ... + 572900.

2^2291594 is an apocalyptic number.

2291594 is a deficient number, since it is larger than the sum of its proper divisors (1145800).

2291594 is a wasteful number, since it uses less digits than its factorization.

2291594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145799.

The product of its digits is 6480, while the sum is 32.

The square root of 2291594 is about 1513.8011758484. The cubic root of 2291594 is about 131.8396046903.

The spelling of 2291594 in words is "two million, two hundred ninety-one thousand, five hundred ninety-four".