2781496 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 1331680.

The previous prime is 2781491. The next prime is 2781497. The reversal of 2781496 is 6941872.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781491) 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, 33471 + ... + 33553.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2781496 is an apocalyptic number.

It is an amenable number.

2781496 is a deficient number, since it is larger than the sum of its proper divisors (2661704).

2781496 is a wasteful number, since it uses less digits than its factorization.

2781496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 215 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 2781496 is about 1667.7817603032. The cubic root of 2781496 is about 140.6348043205.

The spelling of 2781496 in words is "two million, seven hundred eighty-one thousand, four hundred ninety-six".