4247478 has 40 divisors (see below), whose sum is σ = 9635472. Its totient is φ = 1398384.

The previous prime is 4247471. The next prime is 4247513. The reversal of 4247478 is 8747424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25351 + ... + 25517.

Almost surely, 2^4247478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4247478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4817736).

4247478 is an abundant number, since it is smaller than the sum of its proper divisors (5387994).

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

4247478 is a wasteful number, since it uses less digits than its factorization.

4247478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 329 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 4247478 is about 2060.9410471918. The cubic root of 4247478 is about 161.9485433281.

The spelling of 4247478 in words is "four million, two hundred forty-seven thousand, four hundred seventy-eight".