38542389 has 8 divisors (see below), whose sum is σ = 51434880. Its totient is φ = 25672416.

The previous prime is 38542381. The next prime is 38542391. The reversal of 38542389 is 98324583.

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

It is not a de Polignac number, because 38542389 - 2³ = 38542381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38542389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38542381) 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 7 ways as a sum of consecutive naturals, for example, 1117 + ... + 8850.

It is an arithmetic number, because the mean of its divisors is an integer number (6429360).

Almost surely, 2^38542389 is an apocalyptic number.

It is an amenable number.

38542389 is a deficient number, since it is larger than the sum of its proper divisors (12892491).

38542389 is a wasteful number, since it uses less digits than its factorization.

38542389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11259.

The product of its digits is 207360, while the sum is 42.

The square root of 38542389 is about 6208.2516862640. The cubic root of 38542389 is about 337.7895501445.

The spelling of 38542389 in words is "thirty-eight million, five hundred forty-two thousand, three hundred eighty-nine".