2491258 has 24 divisors (see below), whose sum is σ = 4744224. Its totient is φ = 970200.

The previous prime is 2491243. The next prime is 2491259. The reversal of 2491258 is 8521942.

It is not an unprimeable number, because it can be changed into a prime (2491259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78 + ... + 2233.

It is an arithmetic number, because the mean of its divisors is an integer number (197676).

2^2491258 is an apocalyptic number.

2491258 is a deficient number, since it is larger than the sum of its proper divisors (2252966).

2491258 is a wasteful number, since it uses less digits than its factorization.

2491258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2331 counting only the distinct ones).

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

The square root of 2491258 is about 1578.3719460254. The cubic root of 2491258 is about 135.5624998184.

The spelling of 2491258 in words is "two million, four hundred ninety-one thousand, two hundred fifty-eight".