438717142 has 8 divisors (see below), whose sum is σ = 658166832. Its totient is φ = 219328200.

The previous prime is 438717121. The next prime is 438717143. The reversal of 438717142 is 241717834.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438717143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14392 + ... + 32932.

It is an arithmetic number, because the mean of its divisors is an integer number (82270854).

Almost surely, 2^438717142 is an apocalyptic number.

438717142 is a deficient number, since it is larger than the sum of its proper divisors (219449690).

438717142 is a wasteful number, since it uses less digits than its factorization.

438717142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30374.

The product of its digits is 37632, while the sum is 37.

The square root of 438717142 is about 20945.5757142171. The cubic root of 438717142 is about 759.8505835074.

The spelling of 438717142 in words is "four hundred thirty-eight million, seven hundred seventeen thousand, one hundred forty-two".