438383834534 has 16 divisors (see below), whose sum is σ = 659422200528. Its totient is φ = 218576938752.

The previous prime is 438383834519. The next prime is 438383834587. The reversal of 438383834534 is 435438383834.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 438383834534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630514 + ... + 1880250.

It is an arithmetic number, because the mean of its divisors is an integer number (41213887533).

Almost surely, 2^438383834534 is an apocalyptic number.

438383834534 is a deficient number, since it is larger than the sum of its proper divisors (221038365994).

438383834534 is a wasteful number, since it uses less digits than its factorization.

438383834534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252199.

The product of its digits is 39813120, while the sum is 56.

The spelling of 438383834534 in words is "four hundred thirty-eight billion, three hundred eighty-three million, eight hundred thirty-four thousand, five hundred thirty-four".