834013780 has 12 divisors (see below), whose sum is σ = 1751428980. Its totient is φ = 333605504.

The previous prime is 834013771. The next prime is 834013799. The reversal of 834013780 is 87310438.

It can be written as a sum of positive squares in 2 ways, for example, as 230918416 + 603095364 = 15196^2 + 24558^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20850325 + ... + 20850364.

It is an arithmetic number, because the mean of its divisors is an integer number (145952415).

Almost surely, 2^834013780 is an apocalyptic number.

It is an amenable number.

834013780 is an abundant number, since it is smaller than the sum of its proper divisors (917415200).

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

834013780 is a wasteful number, since it uses less digits than its factorization.

834013780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41700698 (or 41700696 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 834013780 is about 28879.2967365897. The cubic root of 834013780 is about 941.2920891312.

The spelling of 834013780 in words is "eight hundred thirty-four million, thirteen thousand, seven hundred eighty".