438247742834 has 8 divisors (see below), whose sum is σ = 717132670128. Its totient is φ = 199203519460.

The previous prime is 438247742819. The next prime is 438247742869.

438247742834 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×438247742834² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 438247742834.

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, 9960175952 + ... + 9960175995.

It is an arithmetic number, because the mean of its divisors is an integer number (89641583766).

Almost surely, 2^438247742834 is an apocalyptic number.

438247742834 is a deficient number, since it is larger than the sum of its proper divisors (278884927294).

438247742834 is a wasteful number, since it uses less digits than its factorization.

438247742834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19920351960.

The product of its digits is 28901376, while the sum is 56.

The spelling of 438247742834 in words is "four hundred thirty-eight billion, two hundred forty-seven million, seven hundred forty-two thousand, eight hundred thirty-four".