438444834 has 8 divisors (see below), whose sum is σ = 876889680. Its totient is φ = 146148276.

The previous prime is 438444829. The next prime is 438444847.

It is a happy number.

438444834 is nontrivially palindromic in base 10.

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

438444834 is an admirable number.

It is a super-2 number, since 2×438444834² = 384467744922575112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36537064 + ... + 36537075.

It is an arithmetic number, because the mean of its divisors is an integer number (109611210).

Almost surely, 2^438444834 is an apocalyptic number.

438444834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

438444834 is a wasteful number, since it uses less digits than its factorization.

438444834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73074144.

The product of its digits is 589824, while the sum is 42.

The square root of 438444834 is about 20939.0743348411. The cubic root of 438444834 is about 759.6933400374.

The spelling of 438444834 in words is "four hundred thirty-eight million, four hundred forty-four thousand, eight hundred thirty-four".