834385770 has 48 divisors (see below), whose sum is σ = 2239391232. Its totient is φ = 215324640.

The previous prime is 834385733. The next prime is 834385807. The reversal of 834385770 is 77583438.

It is an interprime number because it is at equal distance from previous prime (834385733) and next prime (834385807).

It is a super-2 number, since 2×834385770² = 1392399226356985800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146742 + ... + 152321.

It is an arithmetic number, because the mean of its divisors is an integer number (46653984).

Almost surely, 2^834385770 is an apocalyptic number.

834385770 is an abundant number, since it is smaller than the sum of its proper divisors (1405005462).

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

834385770 is a wasteful number, since it uses less digits than its factorization.

834385770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299107 (or 299104 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 834385770 is about 28885.7364455193. The cubic root of 834385770 is about 941.4320145564.

The spelling of 834385770 in words is "eight hundred thirty-four million, three hundred eighty-five thousand, seven hundred seventy".