839849472 has 400 divisors, whose sum is σ = 3137156352. Its totient is φ = 217313280.

The previous prime is 839849459. The next prime is 839849477. The reversal of 839849472 is 274948938.

839849472 is a `hidden beast` number, since 83 + 9 + 8 + 494 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839849477) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3193213 + ... + 3193475.

Almost surely, 2^839849472 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 839849472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568578176).

839849472 is an abundant number, since it is smaller than the sum of its proper divisors (2297306880).

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

839849472 is a wasteful number, since it uses less digits than its factorization.

839849472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 286 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 839849472 is about 28980.1565213164. The cubic root of 839849472 is about 943.4824319789.

The spelling of 839849472 in words is "eight hundred thirty-nine million, eight hundred forty-nine thousand, four hundred seventy-two".