38849993 has 24 divisors (see below), whose sum is σ = 49412160. Its totient is φ = 30270240.

The previous prime is 38849989. The next prime is 38849999. The reversal of 38849993 is 39994883.

It is not a de Polignac number, because 38849993 - 2² = 38849989 is a prime.

It is a super-2 number, since 2×38849993² = 3018643912200098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38849999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44798 + ... + 45656.

It is an arithmetic number, because the mean of its divisors is an integer number (2058840).

Almost surely, 2^38849993 is an apocalyptic number.

It is an amenable number.

38849993 is a deficient number, since it is larger than the sum of its proper divisors (10562167).

38849993 is a wasteful number, since it uses less digits than its factorization.

38849993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 950 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 38849993 is about 6232.9762553695. The cubic root of 38849993 is about 338.6857946697.

The spelling of 38849993 in words is "thirty-eight million, eight hundred forty-nine thousand, nine hundred ninety-three".