4161894272 has 48 divisors (see below), whose sum is σ = 8341158120. Its totient is φ = 2068496640.

The previous prime is 4161894257. The next prime is 4161894281. The reversal of 4161894272 is 2724981614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6595397 + ... + 6596027.

Almost surely, 2^4161894272 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 4161894272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4170579060).

4161894272 is an abundant number, since it is smaller than the sum of its proper divisors (4179263848).

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

4161894272 is an frugal number, since it uses more digits than its factorization.

4161894272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 860 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 4161894272 is about 64512.7450353804. The cubic root of 4161894272 is about 1608.5343801174.

The spelling of 4161894272 in words is "four billion, one hundred sixty-one million, eight hundred ninety-four thousand, two hundred seventy-two".