4256478 has 12 divisors (see below), whose sum is σ = 9222408. Its totient is φ = 1418820.

The previous prime is 4256471. The next prime is 4256491. The reversal of 4256478 is 8746524.

4256478 is a `hidden beast` number, since 4 + 2 + 5 + 647 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118218 + ... + 118253.

It is an arithmetic number, because the mean of its divisors is an integer number (768534).

Almost surely, 2^4256478 is an apocalyptic number.

4256478 is an abundant number, since it is smaller than the sum of its proper divisors (4965930).

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

4256478 is a wasteful number, since it uses less digits than its factorization.

4256478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236479 (or 236476 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 4256478 is about 2063.1233603447. The cubic root of 4256478 is about 162.0628471291.

It can be divided in two parts, 425 and 6478, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 4256478 in words is "four million, two hundred fifty-six thousand, four hundred seventy-eight".