3278867280 has 160 divisors (see below), whose sum is σ = 11003462400. Its totient is φ = 802897920.

The previous prime is 3278867279. The next prime is 3278867287. The reversal of 3278867280 is 827688723.

3278867280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278867287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 618240 + ... + 623520.

It is an arithmetic number, because the mean of its divisors is an integer number (68771640).

Almost surely, 2^3278867280 is an apocalyptic number.

3278867280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3278867280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5501731200).

3278867280 is an abundant number, since it is smaller than the sum of its proper divisors (7724595120).

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

3278867280 is a wasteful number, since it uses less digits than its factorization.

3278867280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 3278867280 is about 57261.3943246233. The cubic root of 3278867280 is about 1485.6207134292.

The spelling of 3278867280 in words is "three billion, two hundred seventy-eight million, eight hundred sixty-seven thousand, two hundred eighty".