438547420838 has 8 divisors (see below), whose sum is σ = 692443296120. Its totient is φ = 207732988800.

The previous prime is 438547420769. The next prime is 438547420859. The reversal of 438547420838 is 838024745834.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5770360763 + ... + 5770360838.

It is an arithmetic number, because the mean of its divisors is an integer number (86555412015).

Almost surely, 2^438547420838 is an apocalyptic number.

438547420838 is a deficient number, since it is larger than the sum of its proper divisors (253895875282).

438547420838 is a wasteful number, since it uses less digits than its factorization.

438547420838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540721622.

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 438547420838 in words is "four hundred thirty-eight billion, five hundred forty-seven million, four hundred twenty thousand, eight hundred thirty-eight".