3447211284 has 240 divisors, whose sum is σ = 10409236992. Its totient is φ = 984960000.

The previous prime is 3447211247. The next prime is 3447211289. The reversal of 3447211284 is 4821127443.

3447211284 = T₇₂ + T₇₃ + ... + T₂₇₄₄.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447211289) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4529464 + ... + 4530224.

Almost surely, 2^3447211284 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 3447211284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5204618496).

3447211284 is an abundant number, since it is smaller than the sum of its proper divisors (6962025708).

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

3447211284 is a wasteful number, since it uses less digits than its factorization.

3447211284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 849 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 3447211284 is about 58712.9566961161. The cubic root of 3447211284 is about 1510.6225645062.

The spelling of 3447211284 in words is "three billion, four hundred forty-seven million, two hundred eleven thousand, two hundred eighty-four".