3405215320 has 96 divisors (see below), whose sum is σ = 8626136400. Its totient is φ = 1202547456.

The previous prime is 3405215299. The next prime is 3405215393. The reversal of 3405215320 is 235125043.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268891 + ... + 281269.

Almost surely, 2^3405215320 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 3405215320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4313068200).

3405215320 is an abundant number, since it is smaller than the sum of its proper divisors (5220921080).

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

3405215320 is a wasteful number, since it uses less digits than its factorization.

3405215320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12449 (or 12422 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 3405215320 is about 58354.2228120639. Note that the first 3 decimals coincide. The cubic root of 3405215320 is about 1504.4630513155.

The spelling of 3405215320 in words is "three billion, four hundred five million, two hundred fifteen thousand, three hundred twenty".