2782046 has 4 divisors (see below), whose sum is σ = 4173072. Its totient is φ = 1391022.

The previous prime is 2782019. The next prime is 2782049. The reversal of 2782046 is 6402872.

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

It is a super-2 number, since 2×2782046² = 15479559892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782049) 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, 695510 + ... + 695513.

It is an arithmetic number, because the mean of its divisors is an integer number (1043268).

2^2782046 is an apocalyptic number.

2782046 is a deficient number, since it is larger than the sum of its proper divisors (1391026).

2782046 is a wasteful number, since it uses less digits than its factorization.

2782046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391025.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2782046 is about 1667.9466418324. The cubic root of 2782046 is about 140.6440731990.

The spelling of 2782046 in words is "two million, seven hundred eighty-two thousand, forty-six".