4247520 has 48 divisors (see below), whose sum is σ = 13381200. Its totient is φ = 1132544.

The previous prime is 4247513. The next prime is 4247539. The reversal of 4247520 is 257424.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 4 + 2⁹ + 4¹¹ + 7⁵ + 5⁵ + 2¹⁵ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945 + ... + 4904.

It is an arithmetic number, because the mean of its divisors is an integer number (278775).

Almost surely, 2^4247520 is an apocalyptic number.

4247520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4247520 is an abundant number, since it is smaller than the sum of its proper divisors (9133680).

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

4247520 is a wasteful number, since it uses less digits than its factorization.

4247520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8867 (or 8859 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 4247520 is about 2060.9512366866. The cubic root of 4247520 is about 161.9490771207.

The spelling of 4247520 in words is "four million, two hundred forty-seven thousand, five hundred twenty".