3278046720 has 160 divisors (see below), whose sum is σ = 11285965152. Its totient is φ = 806879232.

The previous prime is 3278046701. The next prime is 3278046749. The reversal of 3278046720 is 276408723.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83424 + ... + 116256.

Almost surely, 2^3278046720 is an apocalyptic number.

3278046720 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 3278046720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5642982576).

3278046720 is an abundant number, since it is smaller than the sum of its proper divisors (8007918432).

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

3278046720 is a wasteful number, since it uses less digits than its factorization.

3278046720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32872 (or 32856 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 3278046720 is about 57254.2288394491. The cubic root of 3278046720 is about 1485.4967740182.

The spelling of 3278046720 in words is "three billion, two hundred seventy-eight million, forty-six thousand, seven hundred twenty".