4247456 has 48 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 1951488.

The previous prime is 4247449. The next prime is 4247459. The reversal of 4247456 is 6547424.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 4 + 2¹¹ + 4⁶ + 7³ + 4¹¹ + 5 + 6⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21245 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 2^4247456 is an apocalyptic number.

4247456 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4247456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4536000).

4247456 is an abundant number, since it is smaller than the sum of its proper divisors (4824544).

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

4247456 is a wasteful number, since it uses less digits than its factorization.

4247456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 253 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 4247456 is about 2060.9357098173. The cubic root of 4247456 is about 161.9482637211.

Subtracting from 4247456 its sum of digits (32), we obtain a palindrome (4247424).

Subtracting 4247456 from its reverse (6547424), we obtain a cube (2299968 = 132³).

The spelling of 4247456 in words is "four million, two hundred forty-seven thousand, four hundred fifty-six".