840692241 has 6 divisors (see below), whose sum is σ = 1214333250. Its totient is φ = 560461488.

The previous prime is 840692233. The next prime is 840692267. The reversal of 840692241 is 142296048.

840692241 is a `hidden beast` number, since 8 + 406 + 9 + 2 + 241 = 666.

It can be written as a sum of positive squares in only one way, i.e., 703310400 + 137381841 = 26520^2 + 11721^2 .

It is not a de Polignac number, because 840692241 - 2³ = 840692233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 840692196 and 840692205.

It is not an unprimeable number, because it can be changed into a prime (840692291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46705116 + ... + 46705133.

It is an arithmetic number, because the mean of its divisors is an integer number (202388875).

Almost surely, 2^840692241 is an apocalyptic number.

It is an amenable number.

840692241 is a deficient number, since it is larger than the sum of its proper divisors (373641009).

840692241 is a wasteful number, since it uses less digits than its factorization.

840692241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93410255 (or 93410252 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 840692241 is about 28994.6933248138. The cubic root of 840692241 is about 943.7979138810.

The spelling of 840692241 in words is "eight hundred forty million, six hundred ninety-two thousand, two hundred forty-one".