38839385 has 12 divisors (see below), whose sum is σ = 50257452. Its totient is φ = 28644288.

The previous prime is 38839369. The next prime is 38839391. The reversal of 38839385 is 58393883.

It can be written as a sum of positive squares in 6 ways, for example, as 19855936 + 18983449 = 4456^2 + 4357^2 .

It is not a de Polignac number, because 38839385 - 2⁴ = 38839369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49859 + ... + 50631.

It is an arithmetic number, because the mean of its divisors is an integer number (4188121).

Almost surely, 2^38839385 is an apocalyptic number.

It is an amenable number.

38839385 is a deficient number, since it is larger than the sum of its proper divisors (11418067).

38839385 is an frugal number, since it uses more digits than its factorization.

38839385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 791 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 38839385 is about 6232.1252394348. The cubic root of 38839385 is about 338.6549657841.

It can be divided in two parts, 3 and 8839385, that added together give a palindrome (8839388).

The spelling of 38839385 in words is "thirty-eight million, eight hundred thirty-nine thousand, three hundred eighty-five".