840196227 has 16 divisors (see below), whose sum is σ = 1229201568. Its totient is φ = 507287040.

The previous prime is 840196213. The next prime is 840196241. The reversal of 840196227 is 722691048.

It is an interprime number because it is at equal distance from previous prime (840196213) and next prime (840196241).

It is not a de Polignac number, because 840196227 - 2²² = 836001923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (840196267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201174 + ... + 205307.

It is an arithmetic number, because the mean of its divisors is an integer number (76825098).

Almost surely, 2^840196227 is an apocalyptic number.

840196227 is a deficient number, since it is larger than the sum of its proper divisors (389005341).

840196227 is a wasteful number, since it uses less digits than its factorization.

840196227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406550.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 840196227 is about 28986.1385320639. The cubic root of 840196227 is about 943.6122616872.

The spelling of 840196227 in words is "eight hundred forty million, one hundred ninety-six thousand, two hundred twenty-seven".