2491124 has 6 divisors (see below), whose sum is σ = 4359474. Its totient is φ = 1245560.

The previous prime is 2491123. The next prime is 2491171. The reversal of 2491124 is 4211942.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 446224 = 1430^2 + 668^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2491124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311387 + ... + 311394.

It is an arithmetic number, because the mean of its divisors is an integer number (726579).

2^2491124 is an apocalyptic number.

It is an amenable number.

2491124 is a deficient number, since it is larger than the sum of its proper divisors (1868350).

2491124 is a wasteful number, since it uses less digits than its factorization.

2491124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622785 (or 622783 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 2491124 is about 1578.3294966514. The cubic root of 2491124 is about 135.5600692257.

The spelling of 2491124 in words is "two million, four hundred ninety-one thousand, one hundred twenty-four".