2781246 has 32 divisors (see below), whose sum is σ = 6054048. Its totient is φ = 846720.

The previous prime is 2781221. The next prime is 2781271. The reversal of 2781246 is 6421872.

2781246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2781221) and next prime (2781271).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14020 + ... + 14216.

It is an arithmetic number, because the mean of its divisors is an integer number (189189).

2^2781246 is an apocalyptic number.

2781246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2781246 is an abundant number, since it is smaller than the sum of its proper divisors (3272802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2781246 is a wasteful number, since it uses less digits than its factorization.

2781246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its digits is 5376, while the sum is 30.

The square root of 2781246 is about 1667.7068087647. The cubic root of 2781246 is about 140.6305907901.

The spelling of 2781246 in words is "two million, seven hundred eighty-one thousand, two hundred forty-six".