3247420 has 48 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 1137920.

The previous prime is 3247417. The next prime is 3247421. The reversal of 3247420 is 247423.

3247420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3247391 and 3247400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3247421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

Almost surely, 2^3247420 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 3247420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3855600).

3247420 is an abundant number, since it is smaller than the sum of its proper divisors (4463780).

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

3247420 is a wasteful number, since it uses less digits than its factorization.

3247420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 3247420 is about 1802.0599324107. The cubic root of 3247420 is about 148.0855969421.

It can be divided in two parts, 324 and 7420, that added together give a square (7744 = 88²).

The spelling of 3247420 in words is "three million, two hundred forty-seven thousand, four hundred twenty".