4247730 has 48 divisors (see below), whose sum is σ = 11171160. Its totient is φ = 1119744.

The previous prime is 4247729. The next prime is 4247741. The reversal of 4247730 is 377424.

It can be written as a sum of positive squares in 4 ways, for example, as 2954961 + 1292769 = 1719^2 + 1137^2 .

It is a super-3 number, since 3×4247730³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4247694 and 4247703.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9594 + ... + 10026.

Almost surely, 2^4247730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4247730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5585580).

4247730 is an abundant number, since it is smaller than the sum of its proper divisors (6923430).

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

4247730 is a wasteful number, since it uses less digits than its factorization.

4247730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 4247730 is about 2061.0021834050. The cubic root of 4247730 is about 161.9517460307.

The spelling of 4247730 in words is "four million, two hundred forty-seven thousand, seven hundred thirty".