38448899 has 4 divisors (see below), whose sum is σ = 38608680. Its totient is φ = 38289120.

The previous prime is 38448889. The next prime is 38448901. The reversal of 38448899 is 99884483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99884483 = 863 ⋅115741.

It is a cyclic number.

It is not a de Polignac number, because 38448899 - 2⁸ = 38448643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38448899.

It is not an unprimeable number, because it can be changed into a prime (38448889) 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, 79529 + ... + 80010.

It is an arithmetic number, because the mean of its divisors is an integer number (9652170).

Almost surely, 2^38448899 is an apocalyptic number.

38448899 is a deficient number, since it is larger than the sum of its proper divisors (159781).

38448899 is a wasteful number, since it uses less digits than its factorization.

38448899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159780.

The product of its digits is 1990656, while the sum is 53.

The square root of 38448899 is about 6200.7176197598. The cubic root of 38448899 is about 337.5162102868.

The spelling of 38448899 in words is "thirty-eight million, four hundred forty-eight thousand, eight hundred ninety-nine".