38987434 has 16 divisors (see below), whose sum is σ = 59834016. Its totient is φ = 19047600.

The previous prime is 38987419. The next prime is 38987437. The reversal of 38987434 is 43478983.

38987434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38987437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16444 + ... + 18664.

It is an arithmetic number, because the mean of its divisors is an integer number (3739626).

Almost surely, 2^38987434 is an apocalyptic number.

38987434 is a deficient number, since it is larger than the sum of its proper divisors (20846582).

38987434 is a wasteful number, since it uses less digits than its factorization.

38987434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421.

The product of its digits is 580608, while the sum is 46.

The square root of 38987434 is about 6243.9918321535. The cubic root of 38987434 is about 339.0847181983.

The spelling of 38987434 in words is "thirty-eight million, nine hundred eighty-seven thousand, four hundred thirty-four".