838505838 has 32 divisors (see below), whose sum is σ = 1698446880. Its totient is φ = 275945600.

The previous prime is 838505827. The next prime is 838505861.

838505838 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233956 + ... + 237512.

It is an arithmetic number, because the mean of its divisors is an integer number (53076465).

Almost surely, 2^838505838 is an apocalyptic number.

838505838 is an abundant number, since it is smaller than the sum of its proper divisors (859941042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838505838 is a wasteful number, since it uses less digits than its factorization.

838505838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052.

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 838505838 is about 28956.9652760782. The cubic root of 838505838 is about 942.9790196577.

The spelling of 838505838 in words is "eight hundred thirty-eight million, five hundred five thousand, eight hundred thirty-eight".