3298644720 has 720 divisors, whose sum is σ = 14003121600. Its totient is φ = 694987776.

The previous prime is 3298644719. The next prime is 3298644733. The reversal of 3298644720 is 274468923.

3298644720 is a `hidden beast` number, since 32 + 98 + 64 + 472 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 89152542 + ... + 89152578.

It is an arithmetic number, because the mean of its divisors is an integer number (19448780).

Almost surely, 2^3298644720 is an apocalyptic number.

3298644720 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 3298644720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7001560800).

3298644720 is an abundant number, since it is smaller than the sum of its proper divisors (10704476880).

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

3298644720 is a wasteful number, since it uses less digits than its factorization.

3298644720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 3298644720 is about 57433.8290557055. The cubic root of 3298644720 is about 1488.6017120774.

The spelling of 3298644720 in words is "three billion, two hundred ninety-eight million, six hundred forty-four thousand, seven hundred twenty".