2491252 has 6 divisors (see below), whose sum is σ = 4359698. Its totient is φ = 1245624.

The previous prime is 2491243. The next prime is 2491259. The reversal of 2491252 is 2521942.

It can be written as a sum of positive squares in only one way, i.e., 1354896 + 1136356 = 1164^2 + 1066^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 311403 + ... + 311410.

2^2491252 is an apocalyptic number.

It is an amenable number.

2491252 is a deficient number, since it is larger than the sum of its proper divisors (1868446).

2491252 is a wasteful number, since it uses less digits than its factorization.

2491252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622817 (or 622815 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2491252 is about 1578.3700453316. The cubic root of 2491252 is about 135.5623909878.

It can be divided in two parts, 24912 and 52, that added together give a square (24964 = 158²).

The spelling of 2491252 in words is "two million, four hundred ninety-one thousand, two hundred fifty-two".