3421505000 has 80 divisors (see below), whose sum is σ = 8488360980. Its totient is φ = 1288064000.

The previous prime is 3421504951. The next prime is 3421505011. The reversal of 3421505000 is 5051243.

It can be written as a sum of positive squares in 10 ways, for example, as 14915044 + 3406589956 = 3862^2 + 58366^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64874 + ... + 105126.

Almost surely, 2^3421505000 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 3421505000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244180490).

3421505000 is an abundant number, since it is smaller than the sum of its proper divisors (5066855980).

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

3421505000 is a wasteful number, since it uses less digits than its factorization.

3421505000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40296 (or 40277 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3421505000 is about 58493.6321320535. The cubic root of 3421505000 is about 1506.8582250068.

Adding to 3421505000 its reverse (5051243), we get a palindrome (3426556243).

The spelling of 3421505000 in words is "three billion, four hundred twenty-one million, five hundred five thousand".