343288638 has 64 divisors (see below), whose sum is σ = 951114240. Its totient is φ = 89164800.

The previous prime is 343288619. The next prime is 343288643. The reversal of 343288638 is 836882343.

343288638 is a `hidden beast` number, since 3 + 4 + 3 + 2 + 8 + 8 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 343288593 and 343288602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37123 + ... + 45438.

It is an arithmetic number, because the mean of its divisors is an integer number (14861160).

Almost surely, 2^343288638 is an apocalyptic number.

343288638 is an abundant number, since it is smaller than the sum of its proper divisors (607825602).

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

343288638 is a wasteful number, since it uses less digits than its factorization.

343288638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82590 (or 82584 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 343288638 is about 18528.0500323159. The cubic root of 343288638 is about 700.1962973292.

The spelling of 343288638 in words is "three hundred forty-three million, two hundred eighty-eight thousand, six hundred thirty-eight".