3391206840 has 192 divisors, whose sum is σ = 12708446400. Its totient is φ = 768208896.

The previous prime is 3391206827. The next prime is 3391206857. The reversal of 3391206840 is 486021933.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3391206795 and 3391206804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278806 + ... + 290714.

It is an arithmetic number, because the mean of its divisors is an integer number (66189825).

Almost surely, 2^3391206840 is an apocalyptic number.

3391206840 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 3391206840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6354223200).

3391206840 is an abundant number, since it is smaller than the sum of its proper divisors (9317239560).

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

3391206840 is a wasteful number, since it uses less digits than its factorization.

3391206840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12046 (or 12039 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3391206840 is about 58234.0694095819. The cubic root of 3391206840 is about 1502.3971803103.

The spelling of 3391206840 in words is "three billion, three hundred ninety-one million, two hundred six thousand, eight hundred forty".