834773840 has 40 divisors (see below), whose sum is σ = 1942161408. Its totient is φ = 333683840.

The previous prime is 834773833. The next prime is 834773851. The reversal of 834773840 is 48377438.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 834773791 and 834773800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166409 + ... + 171351.

Almost surely, 2^834773840 is an apocalyptic number.

834773840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

834773840 is an abundant number, since it is smaller than the sum of its proper divisors (1107387568).

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

834773840 is a wasteful number, since it uses less digits than its factorization.

834773840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7067 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 834773840 is about 28892.4529938183. The cubic root of 834773840 is about 941.5779442171.

The spelling of 834773840 in words is "eight hundred thirty-four million, seven hundred seventy-three thousand, eight hundred forty".