2782156 has 12 divisors (see below), whose sum is σ = 5243392. Its totient is φ = 1284048.

The previous prime is 2782147. The next prime is 2782159. The reversal of 2782156 is 6512872.

It is not an unprimeable number, because it can be changed into a prime (2782159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26700 + ... + 26803.

2^2782156 is an apocalyptic number.

2782156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2782156 is a deficient number, since it is larger than the sum of its proper divisors (2461236).

2782156 is a wasteful number, since it uses less digits than its factorization.

2782156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53520 (or 53518 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 2782156 is about 1667.9796161824. The cubic root of 2782156 is about 140.6459268280.

The spelling of 2782156 in words is "two million, seven hundred eighty-two thousand, one hundred fifty-six".