2491336 has 16 divisors (see below), whose sum is σ = 4694400. Its totient is φ = 1239504.

The previous prime is 2491331. The next prime is 2491339. The reversal of 2491336 is 6331942.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261 + ... + 2563.

It is an arithmetic number, because the mean of its divisors is an integer number (293400).

2^2491336 is an apocalyptic number.

It is an amenable number.

2491336 is a deficient number, since it is larger than the sum of its proper divisors (2203064).

2491336 is a wasteful number, since it uses less digits than its factorization.

2491336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1544 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 2491336 is about 1578.3966548368. The cubic root of 2491336 is about 135.5639146009.

Subtracting 2491336 from its reverse (6331942), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2491336 in words is "two million, four hundred ninety-one thousand, three hundred thirty-six".