38398399 has 8 divisors (see below), whose sum is σ = 41608112. Its totient is φ = 35225280.

The previous prime is 38398379. The next prime is 38398403. The reversal of 38398399 is 99389383.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38398399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38398309) 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, 6942 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (5201014).

Almost surely, 2^38398399 is an apocalyptic number.

38398399 is a deficient number, since it is larger than the sum of its proper divisors (3209713).

38398399 is a wasteful number, since it uses less digits than its factorization.

38398399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18297.

The product of its digits is 1259712, while the sum is 52.

The square root of 38398399 is about 6196.6441724533. The cubic root of 38398399 is about 337.3683773899.

The spelling of 38398399 in words is "thirty-eight million, three hundred ninety-eight thousand, three hundred ninety-nine".