3242728 has 8 divisors (see below), whose sum is σ = 6080130. Its totient is φ = 1621360.

The previous prime is 3242689. The next prime is 3242741. The reversal of 3242728 is 8272423.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 1387684 = 1362^2 + 1178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3242696 and 3242705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202663 + ... + 202678.

Almost surely, 2^3242728 is an apocalyptic number.

It is an amenable number.

3242728 is a deficient number, since it is larger than the sum of its proper divisors (2837402).

3242728 is a wasteful number, since it uses less digits than its factorization.

3242728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405347 (or 405343 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 3242728 is about 1800.7576183373. The cubic root of 3242728 is about 148.0142426030.

The spelling of 3242728 in words is "three million, two hundred forty-two thousand, seven hundred twenty-eight".