2781014 has 4 divisors (see below), whose sum is σ = 4171524. Its totient is φ = 1390506.

The previous prime is 2781007. The next prime is 2781017. The reversal of 2781014 is 4101872.

It is a semiprime because it is the product of two primes.

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 (2781017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695252 + ... + 695255.

It is an arithmetic number, because the mean of its divisors is an integer number (1042881).

2^2781014 is an apocalyptic number.

2781014 is a deficient number, since it is larger than the sum of its proper divisors (1390510).

2781014 is a wasteful number, since it uses less digits than its factorization.

2781014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390509.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2781014 is about 1667.6372507233. The cubic root of 2781014 is about 140.6266804079.

Adding to 2781014 its reverse (4101872), we get a palindrome (6882886).

It can be divided in two parts, 2 and 781014, that multiplied together give a triangular number (1562028 = T₁₇₆₇).

The spelling of 2781014 in words is "two million, seven hundred eighty-one thousand, fourteen".