3278128 has 20 divisors (see below), whose sum is σ = 7258960. Its totient is φ = 1404864.

The previous prime is 3278117. The next prime is 3278129. The reversal of 3278128 is 8218723.

It is a super-2 number, since 2×3278128² = 21492246368768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3278128.

It is not an unprimeable number, because it can be changed into a prime (3278129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14523 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (362948).

Almost surely, 2^3278128 is an apocalyptic number.

It is an amenable number.

3278128 is an abundant number, since it is smaller than the sum of its proper divisors (3980832).

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

3278128 is a wasteful number, since it uses less digits than its factorization.

3278128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29284 (or 29278 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 3278128 is about 1810.5601343231. The cubic root of 3278128 is about 148.5509051673.

The spelling of 3278128 in words is "three million, two hundred seventy-eight thousand, one hundred twenty-eight".