438061838 has 8 divisors (see below), whose sum is σ = 657887880. Its totient is φ = 218765880.

The previous prime is 438061807. The next prime is 438061889. The reversal of 438061838 is 838160834.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 438061795 and 438061804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130448 + ... + 133763.

It is an arithmetic number, because the mean of its divisors is an integer number (82235985).

Almost surely, 2^438061838 is an apocalyptic number.

438061838 is a deficient number, since it is larger than the sum of its proper divisors (219826042).

438061838 is a wasteful number, since it uses less digits than its factorization.

438061838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265042.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 438061838 is about 20929.9268512816. The cubic root of 438061838 is about 759.4720698799.

The spelling of 438061838 in words is "four hundred thirty-eight million, sixty-one thousand, eight hundred thirty-eight".