4247040 has 160 divisors (see below), whose sum is σ = 15713280. Its totient is φ = 958464.

The previous prime is 4247039. The next prime is 4247053. The reversal of 4247040 is 407424.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 4246998 and 4247016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53721 + ... + 53799.

It is an arithmetic number, because the mean of its divisors is an integer number (98208).

Almost surely, 2^4247040 is an apocalyptic number.

4247040 is a gapful number since it is divisible by the number (40) 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 4247040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7856640).

4247040 is an abundant number, since it is smaller than the sum of its proper divisors (11466240).

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

4247040 is an equidigital number, since it uses as much as digits as its factorization.

4247040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 4247040 is about 2060.8347823152. The cubic root of 4247040 is about 161.9429764246.

The spelling of 4247040 in words is "four million, two hundred forty-seven thousand, forty".