3280244497920 has 640 divisors, whose sum is σ = 12638741068800. Its totient is φ = 801605320704.

The previous prime is 3280244497861. The next prime is 3280244497927. The reversal of 3280244497920 is 297944420823.

3280244497920 is a `hidden beast` number, since 3 + 28 + 0 + 2 + 44 + 497 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×3280244497920² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280244497927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124886709 + ... + 124912971.

It is an arithmetic number, because the mean of its divisors is an integer number (19748032920).

Almost surely, 2^{3280244497920} is an apocalyptic number.

3280244497920 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 3280244497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6319370534400).

3280244497920 is an abundant number, since it is smaller than the sum of its proper divisors (9358496570880).

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

3280244497920 is a wasteful number, since it uses less digits than its factorization.

3280244497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26447 (or 26425 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 3280244497920 in words is "three trillion, two hundred eighty billion, two hundred forty-four million, four hundred ninety-seven thousand, nine hundred twenty".