4047056 has 20 divisors (see below), whose sum is σ = 8444772. Its totient is φ = 1867776.

The previous prime is 4047053. The next prime is 4047067. The reversal of 4047056 is 6507404.

It can be written as a sum of positive squares in 2 ways, for example, as 1915456 + 2131600 = 1384^2 + 1460^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047053) 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, 9521 + ... + 9936.

Almost surely, 2^4047056 is an apocalyptic number.

It is an amenable number.

4047056 is an abundant number, since it is smaller than the sum of its proper divisors (4397716).

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

4047056 is a wasteful number, since it uses less digits than its factorization.

4047056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19478 (or 19472 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4047056 is about 2011.7296040969. The cubic root of 4047056 is about 159.3601529678.

The spelling of 4047056 in words is "four million, forty-seven thousand, fifty-six".