38908642 has 16 divisors (see below), whose sum is σ = 59496192. Its totient is φ = 19079280.

The previous prime is 38908619. The next prime is 38908643. The reversal of 38908642 is 24680983.

It is a junction number, because it is equal to n+sod(n) for n = 38908595 and 38908604.

It is not an unprimeable number, because it can be changed into a prime (38908643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38767 + ... + 39757.

It is an arithmetic number, because the mean of its divisors is an integer number (3718512).

Almost surely, 2^38908642 is an apocalyptic number.

38908642 is a deficient number, since it is larger than the sum of its proper divisors (20587550).

38908642 is a wasteful number, since it uses less digits than its factorization.

38908642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 38908642 is about 6237.6792158623. The cubic root of 38908642 is about 338.8561387245.

The spelling of 38908642 in words is "thirty-eight million, nine hundred eight thousand, six hundred forty-two".