3409705520 has 80 divisors (see below), whose sum is σ = 8548932000. Its totient is φ = 1257265152.

The previous prime is 3409705517. The next prime is 3409705567. The reversal of 3409705520 is 255079043.

It is a tau number, because it is divible by the number of its divisors (80).

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, 972731 + ... + 976229.

It is an arithmetic number, because the mean of its divisors is an integer number (106861650).

Almost surely, 2^3409705520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3409705520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4274466000).

3409705520 is an abundant number, since it is smaller than the sum of its proper divisors (5139226480).

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

3409705520 is a wasteful number, since it uses less digits than its factorization.

3409705520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 3409705520 is about 58392.6837882966. The cubic root of 3409705520 is about 1505.1240347658.

The spelling of 3409705520 in words is "three billion, four hundred nine million, seven hundred five thousand, five hundred twenty".