3280426 has 16 divisors (see below), whose sum is σ = 5220000. Its totient is φ = 1541808.

The previous prime is 3280423. The next prime is 3280441. The reversal of 3280426 is 6240823.

It is a happy number.

It is a super-2 number, since 2×3280426² = 21522389482952, which contains 22 as substring.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 3280426.

It is not an unprimeable number, because it can be changed into a prime (3280423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6325 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (326250).

Almost surely, 2^3280426 is an apocalyptic number.

3280426 is the 1146-th centered pentagonal number.

3280426 is a deficient number, since it is larger than the sum of its proper divisors (1939574).

3280426 is a wasteful number, since it uses less digits than its factorization.

3280426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3280426 is about 1811.1946333843. The cubic root of 3280426 is about 148.5856089417.

The spelling of 3280426 in words is "three million, two hundred eighty thousand, four hundred twenty-six".