838313538 has 16 divisors (see below), whose sum is σ = 1689830400. Its totient is φ = 277237296.

The previous prime is 838313519. The next prime is 838313579. The reversal of 838313538 is 835313838.

It is a self number, because there is not a number n which added to its sum of digits gives 838313538.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549313 + ... + 550836.

It is an arithmetic number, because the mean of its divisors is an integer number (105614400).

Almost surely, 2^838313538 is an apocalyptic number.

838313538 is an abundant number, since it is smaller than the sum of its proper divisors (851516862).

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

838313538 is a wasteful number, since it uses less digits than its factorization.

838313538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100281.

The product of its digits is 207360, while the sum is 42.

The square root of 838313538 is about 28953.6446410465. The cubic root of 838313538 is about 942.9069276415.

The spelling of 838313538 in words is "eight hundred thirty-eight million, three hundred thirteen thousand, five hundred thirty-eight".