438211742 has 4 divisors (see below), whose sum is σ = 657317616. Its totient is φ = 219105870.

The previous prime is 438211733. The next prime is 438211769. The reversal of 438211742 is 247112834.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 438211699 and 438211708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109552934 + ... + 109552937.

It is an arithmetic number, because the mean of its divisors is an integer number (164329404).

Almost surely, 2^438211742 is an apocalyptic number.

438211742 is a deficient number, since it is larger than the sum of its proper divisors (219105874).

438211742 is a wasteful number, since it uses less digits than its factorization.

438211742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219105873.

The product of its digits is 10752, while the sum is 32.

The square root of 438211742 is about 20933.5076372786. The cubic root of 438211742 is about 759.5586900079.

The spelling of 438211742 in words is "four hundred thirty-eight million, two hundred eleven thousand, seven hundred forty-two".