344869004138 has 8 divisors (see below), whose sum is σ = 517315945188. Its totient is φ = 172430355744.

The previous prime is 344869004131. The next prime is 344869004141. The reversal of 344869004138 is 831400968443.

It can be written as a sum of positive squares in 2 ways, for example, as 290927548129 + 53941456009 = 539377^2 + 232253^2 .

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

It is a super-2 number, since 2×344869004138² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (344869004131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968131 + ... + 2136182.

Almost surely, 2^344869004138 is an apocalyptic number.

344869004138 is a deficient number, since it is larger than the sum of its proper divisors (172446941050).

344869004138 is a wasteful number, since it uses less digits than its factorization.

344869004138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146328.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 344869004138 in words is "three hundred forty-four billion, eight hundred sixty-nine million, four thousand, one hundred thirty-eight".