3280207680 has 84 divisors (see below), whose sum is σ = 11282557572. Its totient is φ = 874721280.

The previous prime is 3280207673. The next prime is 3280207699. The reversal of 3280207680 is 867020823.

It is a happy number.

3280207680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 366799104 + 2913408576 = 19152^2 + 53976^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566601 + ... + 572360.

Almost surely, 2^3280207680 is an apocalyptic number.

3280207680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3280207680 is an abundant number, since it is smaller than the sum of its proper divisors (8002349892).

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

3280207680 is a wasteful number, since it uses less digits than its factorization.

3280207680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138984 (or 1138971 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3280207680 is about 57273.0973494537. The cubic root of 3280207680 is about 1485.8231262895.

The spelling of 3280207680 in words is "three billion, two hundred eighty million, two hundred seven thousand, six hundred eighty".