3368807820 has 540 divisors, whose sum is σ = 13042282176. Its totient is φ = 725034240.

The previous prime is 3368807809. The next prime is 3368807821. The reversal of 3368807820 is 287088633.

It is a tau number, because it is divible by the number of its divisors (540).

It is a super-2 number, since 2×3368807820² = 22697732256186304800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (3368807821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 91048842 + ... + 91048878.

Almost surely, 2^3368807820 is an apocalyptic number.

3368807820 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 3368807820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6521141088).

3368807820 is an abundant number, since it is smaller than the sum of its proper divisors (9673474356).

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

3368807820 is a wasteful number, since it uses less digits than its factorization.

3368807820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 3368807820 is about 58041.4319258235. The cubic root of 3368807820 is about 1499.0820783945.

The spelling of 3368807820 in words is "three billion, three hundred sixty-eight million, eight hundred seven thousand, eight hundred twenty".