834849440 has 24 divisors (see below), whose sum is σ = 1972332180. Its totient is φ = 333939712.

The previous prime is 834849427. The next prime is 834849443. The reversal of 834849440 is 44948438.

It can be written as a sum of positive squares in 2 ways, for example, as 786017296 + 48832144 = 28036^2 + 6988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 834849391 and 834849400.

It is not an unprimeable number, because it can be changed into a prime (834849443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608745 + ... + 2609064.

Almost surely, 2^834849440 is an apocalyptic number.

834849440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

834849440 is an abundant number, since it is smaller than the sum of its proper divisors (1137482740).

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

834849440 is a wasteful number, since it uses less digits than its factorization.

834849440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217824 (or 5217816 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 834849440 is about 28893.7612643283. The cubic root of 834849440 is about 941.6063675418.

The spelling of 834849440 in words is "eight hundred thirty-four million, eight hundred forty-nine thousand, four hundred forty".