3275657280 has 448 divisors, whose sum is σ = 13538972160. Its totient is φ = 729907200.

The previous prime is 3275657243. The next prime is 3275657317. The reversal of 3275657280 is 827565723.

3275657280 is a `hidden beast` number, since 3 + 2 + 7 + 565 + 7 + 2 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (3275657243) and next prime (3275657317).

It is a tau number, because it is divible by the number of its divisors (448).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2479020 + ... + 2480340.

It is an arithmetic number, because the mean of its divisors is an integer number (30220920).

Almost surely, 2^3275657280 is an apocalyptic number.

3275657280 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 3275657280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6769486080).

3275657280 is an abundant number, since it is smaller than the sum of its proper divisors (10263314880).

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

3275657280 is a wasteful number, since it uses less digits than its factorization.

3275657280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 3275657280 is about 57233.3581052169. The cubic root of 3275657280 is about 1485.1357492473.

The spelling of 3275657280 in words is "three billion, two hundred seventy-five million, six hundred fifty-seven thousand, two hundred eighty".