2591234 has 4 divisors (see below), whose sum is σ = 3886854. Its totient is φ = 1295616.

The previous prime is 2591233. The next prime is 2591243. The reversal of 2591234 is 4321952.

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

It can be written as a sum of positive squares in only one way, i.e., 2393209 + 198025 = 1547^2 + 445^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2591233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647807 + ... + 647810.

2^2591234 is an apocalyptic number.

2591234 is a deficient number, since it is larger than the sum of its proper divisors (1295620).

2591234 is a wasteful number, since it uses less digits than its factorization.

2591234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295619.

The product of its digits is 2160, while the sum is 26.

The square root of 2591234 is about 1609.7310334338. The cubic root of 2591234 is about 137.3521761203.

The spelling of 2591234 in words is "two million, five hundred ninety-one thousand, two hundred thirty-four".