2978256 has 20 divisors (see below), whose sum is σ = 7693952. Its totient is φ = 992736.

The previous prime is 2978251. The next prime is 2978267. The reversal of 2978256 is 6528792.

It is a happy number.

2978256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30976 + ... + 31071.

2^2978256 is an apocalyptic number.

It is an amenable number.

2978256 is an abundant number, since it is smaller than the sum of its proper divisors (4715696).

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

2978256 is a wasteful number, since it uses less digits than its factorization.

2978256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62058 (or 62052 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 2978256 is about 1725.7624401985. The cubic root of 2978256 is about 143.8756642791.

The spelling of 2978256 in words is "two million, nine hundred seventy-eight thousand, two hundred fifty-six".