138416042 has 8 divisors (see below), whose sum is σ = 208668000. Its totient is φ = 68860044.

The previous prime is 138416039. The next prime is 138416051. The reversal of 138416042 is 240614831.

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

It is a junction number, because it is equal to n+sod(n) for n = 138415996 and 138416014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173492 + ... + 174287.

It is an arithmetic number, because the mean of its divisors is an integer number (26083500).

Almost surely, 2^138416042 is an apocalyptic number.

138416042 is a deficient number, since it is larger than the sum of its proper divisors (70251958).

138416042 is a wasteful number, since it uses less digits than its factorization.

138416042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347980.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 138416042 is about 11765.0347215807. The cubic root of 138416042 is about 517.2837180330.

The spelling of 138416042 in words is "one hundred thirty-eight million, four hundred sixteen thousand, forty-two".