4247424 has 64 divisors (see below), whose sum is σ = 12546000. Its totient is φ = 1414656.

The previous prime is 4247417. The next prime is 4247429.

4247424 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×4247424² = 36081221271552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247429) 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, 2842 + ... + 4070.

Almost surely, 2^4247424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4247424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6273000).

4247424 is an abundant number, since it is smaller than the sum of its proper divisors (8298576).

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

4247424 is a wasteful number, since it uses less digits than its factorization.

4247424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1234 counting only the distinct ones).

The product of its digits is 7168, while the sum is 27.

The square root of 4247424 is about 2060.9279463387. The cubic root of 4247424 is about 161.9478570183.

The spelling of 4247424 in words is "four million, two hundred forty-seven thousand, four hundred twenty-four".