344494638 has 24 divisors (see below), whose sum is σ = 753799176. Its totient is φ = 113694000.

The previous prime is 344494561. The next prime is 344494649. The reversal of 344494638 is 836494443.

It is a happy number.

344494638 is a `hidden beast` number, since 3 + 4 + 4 + 4 + 9 + 4 + 638 = 666.

It is a super-2 number, since 2×344494638² = 237353111221502088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344494593 and 344494602.

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 11 ways as a sum of consecutive naturals, for example, 92928 + ... + 96563.

It is an arithmetic number, because the mean of its divisors is an integer number (31408299).

Almost surely, 2^344494638 is an apocalyptic number.

344494638 is an abundant number, since it is smaller than the sum of its proper divisors (409304538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344494638 is a wasteful number, since it uses less digits than its factorization.

344494638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189600 (or 189597 counting only the distinct ones).

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

The square root of 344494638 is about 18560.5667478124. The cubic root of 344494638 is about 701.0152872491.

The spelling of 344494638 in words is "three hundred forty-four million, four hundred ninety-four thousand, six hundred thirty-eight".