3278490320 has 80 divisors (see below), whose sum is σ = 8834220288. Its totient is φ = 1108208640.

The previous prime is 3278490317. The next prime is 3278490329. The reversal of 3278490320 is 230948723.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278490329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469 + ... + 80988.

Almost surely, 2^3278490320 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 3278490320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4417110144).

3278490320 is an abundant number, since it is smaller than the sum of its proper divisors (5555729968).

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

3278490320 is a wasteful number, since it uses less digits than its factorization.

3278490320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82548 (or 82542 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 3278490320 is about 57258.1026580518. The cubic root of 3278490320 is about 1485.5637790268.

The spelling of 3278490320 in words is "three billion, two hundred seventy-eight million, four hundred ninety thousand, three hundred twenty".