3421215900 has 72 divisors (see below), whose sum is σ = 10998584240. Its totient is φ = 912323520.

The previous prime is 3421215877. The next prime is 3421215901. The reversal of 3421215900 is 95121243.

3421215900 is a `hidden beast` number, since 34 + 21 + 21 + 590 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421215901) by changing a digit.

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, 630859 + ... + 636258.

Almost surely, 2^3421215900 is an apocalyptic number.

3421215900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3421215900 is an abundant number, since it is smaller than the sum of its proper divisors (7577368340).

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

3421215900 is a wasteful number, since it uses less digits than its factorization.

3421215900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267140 (or 1267127 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 3421215900 is about 58491.1608706820. The cubic root of 3421215900 is about 1506.8157831590.

The spelling of 3421215900 in words is "three billion, four hundred twenty-one million, two hundred fifteen thousand, nine hundred".