438447142 has 8 divisors (see below), whose sum is σ = 751623696. Its totient is φ = 187905912.

The previous prime is 438447133. The next prime is 438447169. The reversal of 438447142 is 241744834.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15658813 + ... + 15658840.

It is an arithmetic number, because the mean of its divisors is an integer number (93952962).

Almost surely, 2^438447142 is an apocalyptic number.

438447142 is a deficient number, since it is larger than the sum of its proper divisors (313176554).

438447142 is a wasteful number, since it uses less digits than its factorization.

438447142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31317662.

The product of its digits is 86016, while the sum is 37.

The square root of 438447142 is about 20939.1294470424. The cubic root of 438447142 is about 759.6946730589.

The spelling of 438447142 in words is "four hundred thirty-eight million, four hundred forty-seven thousand, one hundred forty-two".