2781484 has 6 divisors (see below), whose sum is σ = 4867604. Its totient is φ = 1390740.

The previous prime is 2781469. The next prime is 2781487. The reversal of 2781484 is 4841872.

It is not an unprimeable number, because it can be changed into a prime (2781487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347682 + ... + 347689.

2^2781484 is an apocalyptic number.

It is an amenable number.

2781484 is a deficient number, since it is larger than the sum of its proper divisors (2086120).

2781484 is a wasteful number, since it uses less digits than its factorization.

2781484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695375 (or 695373 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 2781484 is about 1667.7781627063. The cubic root of 2781484 is about 140.6346020769.

The spelling of 2781484 in words is "two million, seven hundred eighty-one thousand, four hundred eighty-four".