834640012 has 12 divisors (see below), whose sum is σ = 1461227040. Its totient is φ = 417146576.

The previous prime is 834639989. The next prime is 834640021. The reversal of 834640012 is 210046438.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32212 + ... + 52027.

It is an arithmetic number, because the mean of its divisors is an integer number (121768920).

Almost surely, 2^834640012 is an apocalyptic number.

It is an amenable number.

834640012 is a deficient number, since it is larger than the sum of its proper divisors (626587028).

834640012 is a wasteful number, since it uses less digits than its factorization.

834640012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86720 (or 86718 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 834640012 is about 28890.1369328704. The cubic root of 834640012 is about 941.5276247088.

The spelling of 834640012 in words is "eight hundred thirty-four million, six hundred forty thousand, twelve".