38455399 has 4 divisors (see below), whose sum is σ = 38470464. Its totient is φ = 38440336.

The previous prime is 38455397. The next prime is 38455409. The reversal of 38455399 is 99355483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99355483 = 71 ⋅1399373.

It is a cyclic number.

It is not a de Polignac number, because 38455399 - 2¹ = 38455397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38455393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2647 + ... + 9160.

It is an arithmetic number, because the mean of its divisors is an integer number (9617616).

Almost surely, 2^38455399 is an apocalyptic number.

38455399 is a deficient number, since it is larger than the sum of its proper divisors (15065).

38455399 is a wasteful number, since it uses less digits than its factorization.

38455399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15064.

The product of its digits is 583200, while the sum is 46.

The square root of 38455399 is about 6201.2417304924. The cubic root of 38455399 is about 337.5352288786.

The spelling of 38455399 in words is "thirty-eight million, four hundred fifty-five thousand, three hundred ninety-nine".