39115385 has 8 divisors (see below), whose sum is σ = 49699656. Its totient is φ = 29451520.

The previous prime is 39115343. The next prime is 39115393. The reversal of 39115385 is 58351193.

It can be written as a sum of positive squares in 4 ways, for example, as 14830201 + 24285184 = 3851^2 + 4928^2 .

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

It is not a de Polignac number, because 39115385 - 2¹⁶ = 39049849 is a prime.

It is a Duffinian number.

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, 230006 + ... + 230175.

It is an arithmetic number, because the mean of its divisors is an integer number (6212457).

Almost surely, 2^39115385 is an apocalyptic number.

It is an amenable number.

39115385 is a deficient number, since it is larger than the sum of its proper divisors (10584271).

39115385 is a wasteful number, since it uses less digits than its factorization.

39115385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460203.

The product of its digits is 16200, while the sum is 35.

The square root of 39115385 is about 6254.2293689950. The cubic root of 39115385 is about 339.4552551319.

The spelling of 39115385 in words is "thirty-nine million, one hundred fifteen thousand, three hundred eighty-five".