2978056 has 16 divisors (see below), whose sum is σ = 5735340. Its totient is φ = 1448640.

The previous prime is 2978047. The next prime is 2978071. The reversal of 2978056 is 6508792.

It can be written as a sum of positive squares in 2 ways, for example, as 2775556 + 202500 = 1666^2 + 450^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4735 + ... + 5326.

2^2978056 is an apocalyptic number.

It is an amenable number.

2978056 is a deficient number, since it is larger than the sum of its proper divisors (2757284).

2978056 is a wasteful number, since it uses less digits than its factorization.

2978056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2978056 is about 1725.7044938227. The cubic root of 2978056 is about 143.8724436273.

The spelling of 2978056 in words is "two million, nine hundred seventy-eight thousand, fifty-six".