399038135 has 8 divisors (see below), whose sum is σ = 479848320. Its totient is φ = 318562144.

The previous prime is 399038099. The next prime is 399038137. The reversal of 399038135 is 531830993.

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

It is a cyclic number.

It is not a de Polignac number, because 399038135 - 2¹² = 399034039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 399038092 and 399038101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399038137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80912 + ... + 85701.

It is an arithmetic number, because the mean of its divisors is an integer number (59981040).

Almost surely, 2^399038135 is an apocalyptic number.

399038135 is a deficient number, since it is larger than the sum of its proper divisors (80810185).

399038135 is a wasteful number, since it uses less digits than its factorization.

399038135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167097.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 399038135 is about 19975.9389015886. The cubic root of 399038135 is about 736.2152355451.

The spelling of 399038135 in words is "three hundred ninety-nine million, thirty-eight thousand, one hundred thirty-five".