840234362229 has 12 divisors (see below), whose sum is σ = 1246473799116. Its totient is φ = 545016883392.

The previous prime is 840234362207. The next prime is 840234362263. The reversal of 840234362229 is 922263432048.

840234362229 is a `hidden beast` number, since 8 + 40 + 23 + 4 + 362 + 229 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 585840221604 + 254394140625 = 765402^2 + 504375^2 .

It is not a de Polignac number, because 840234362229 - 2⁵ = 840234362197 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840234362269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1261612824 + ... + 1261613489.

It is an arithmetic number, because the mean of its divisors is an integer number (103872816593).

Almost surely, 2^840234362229 is an apocalyptic number.

It is an amenable number.

840234362229 is a deficient number, since it is larger than the sum of its proper divisors (406239436887).

840234362229 is a wasteful number, since it uses less digits than its factorization.

840234362229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523226356 (or 2523226353 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 840234362229 in words is "eight hundred forty billion, two hundred thirty-four million, three hundred sixty-two thousand, two hundred twenty-nine".