344401438 has 8 divisors (see below), whose sum is σ = 516681432. Its totient is φ = 172174296.

The previous prime is 344401433. The next prime is 344401451. The reversal of 344401438 is 834104443.

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

It is a super-2 number, since 2×344401438² = 237224700992935688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344401433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15981 + ... + 30727.

It is an arithmetic number, because the mean of its divisors is an integer number (64585179).

Almost surely, 2^344401438 is an apocalyptic number.

344401438 is a deficient number, since it is larger than the sum of its proper divisors (172279994).

344401438 is a wasteful number, since it uses less digits than its factorization.

344401438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26426.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 344401438 is about 18558.0558787821. The cubic root of 344401438 is about 700.9520637033.

The spelling of 344401438 in words is "three hundred forty-four million, four hundred one thousand, four hundred thirty-eight".