438813634 has 16 divisors (see below), whose sum is σ = 759284928. Its totient is φ = 186304752.

The previous prime is 438813631. The next prime is 438813647. The reversal of 438813634 is 436318834.

It is not an unprimeable number, because it can be changed into a prime (438813631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144969 + ... + 147964.

It is an arithmetic number, because the mean of its divisors is an integer number (47455308).

Almost surely, 2^438813634 is an apocalyptic number.

438813634 is a deficient number, since it is larger than the sum of its proper divisors (320471294).

438813634 is a wasteful number, since it uses less digits than its factorization.

438813634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293049.

The product of its digits is 165888, while the sum is 40.

The square root of 438813634 is about 20947.8789857112. The cubic root of 438813634 is about 759.9062869215.

The spelling of 438813634 in words is "four hundred thirty-eight million, eight hundred thirteen thousand, six hundred thirty-four".