344377638 has 48 divisors (see below), whose sum is σ = 815645376. Its totient is φ = 104143920.

The previous prime is 344377637. The next prime is 344377651. The reversal of 344377638 is 836773443.

344377638 is a `hidden beast` number, since 3 + 4 + 4 + 3 + 7 + 7 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 344377593 and 344377602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344377633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114745 + ... + 117707.

It is an arithmetic number, because the mean of its divisors is an integer number (16992612).

Almost surely, 2^344377638 is an apocalyptic number.

344377638 is an abundant number, since it is smaller than the sum of its proper divisors (471267738).

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

344377638 is a wasteful number, since it uses less digits than its factorization.

344377638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569 (or 3566 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 344377638 is about 18557.4146367429. The cubic root of 344377638 is about 700.9359168065.

The spelling of 344377638 in words is "three hundred forty-four million, three hundred seventy-seven thousand, six hundred thirty-eight".