2258491 has 8 divisors (see below), whose sum is σ = 2387520. Its totient is φ = 2132928.

The previous prime is 2258483. The next prime is 2258519. The reversal of 2258491 is 1948522.

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 2258491 - 2³ = 2258483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2258791) 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, 535 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (298440).

2^2258491 is an apocalyptic number.

2258491 is a deficient number, since it is larger than the sum of its proper divisors (129029).

2258491 is a wasteful number, since it uses less digits than its factorization.

2258491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its digits is 5760, while the sum is 31.

The square root of 2258491 is about 1502.8276680977. The cubic root of 2258491 is about 131.2016977212.

Adding to 2258491 its sum of digits (31), we get a palindrome (2258522).

The spelling of 2258491 in words is "two million, two hundred fifty-eight thousand, four hundred ninety-one".