38249539 has 4 divisors (see below), whose sum is σ = 38372056. Its totient is φ = 38127024.

The previous prime is 38249531. The next prime is 38249551. The reversal of 38249539 is 93594283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93594283 = 1889 ⋅49547.

It is a cyclic number.

It is not a de Polignac number, because 38249539 - 2³ = 38249531 is a prime.

It is a super-3 number, since 3×38249539³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38249495 and 38249504.

It is not an unprimeable number, because it can be changed into a prime (38249531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60789 + ... + 61414.

It is an arithmetic number, because the mean of its divisors is an integer number (9593014).

Almost surely, 2^38249539 is an apocalyptic number.

38249539 is a deficient number, since it is larger than the sum of its proper divisors (122517).

38249539 is a wasteful number, since it uses less digits than its factorization.

38249539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122516.

The product of its digits is 233280, while the sum is 43.

The square root of 38249539 is about 6184.6211686731. The cubic root of 38249539 is about 336.9318514295.

The spelling of 38249539 in words is "thirty-eight million, two hundred forty-nine thousand, five hundred thirty-nine".