3280445 has 16 divisors (see below), whose sum is σ = 4736640. Its totient is φ = 2130624.

The previous prime is 3280441. The next prime is 3280463. The reversal of 3280445 is 5440823.

3280445 = T₄ + T₅ + ... + T₂₆₉.

3280445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3280445 - 2² = 3280441 is a prime.

It is a super-2 number, since 2×3280445² = 21522638796050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280441) 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, 1802 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (296040).

Almost surely, 2^3280445 is an apocalyptic number.

3280445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3280445 is a deficient number, since it is larger than the sum of its proper divisors (1456195).

3280445 is a wasteful number, since it uses less digits than its factorization.

3280445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3280445 is about 1811.1998785336. The cubic root of 3280445 is about 148.5858958070.

The spelling of 3280445 in words is "three million, two hundred eighty thousand, four hundred forty-five".