840272134 has 8 divisors (see below), whose sum is σ = 1357362720. Its totient is φ = 387817896.

The previous prime is 840272099. The next prime is 840272161. The reversal of 840272134 is 431272048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 840272096 and 840272105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16159054 + ... + 16159105.

It is an arithmetic number, because the mean of its divisors is an integer number (169670340).

Almost surely, 2^840272134 is an apocalyptic number.

840272134 is a deficient number, since it is larger than the sum of its proper divisors (517090586).

840272134 is a wasteful number, since it uses less digits than its factorization.

840272134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32318174.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 840272134 is about 28987.4478697246. The cubic root of 840272134 is about 943.6406775170.

The spelling of 840272134 in words is "eight hundred forty million, two hundred seventy-two thousand, one hundred thirty-four".