138914446 has 32 divisors (see below), whose sum is σ = 244671840. Its totient is φ = 58444800.

The previous prime is 138914417. The next prime is 138914459. The reversal of 138914446 is 644419831.

It is a junction number, because it is equal to n+sod(n) for n = 138914399 and 138914408.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19770 + ... + 25858.

It is an arithmetic number, because the mean of its divisors is an integer number (7645995).

Almost surely, 2^138914446 is an apocalyptic number.

138914446 is a deficient number, since it is larger than the sum of its proper divisors (105757394).

138914446 is a wasteful number, since it uses less digits than its factorization.

138914446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180.

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

The square root of 138914446 is about 11786.1972662942. The cubic root of 138914446 is about 517.9038471320.

The spelling of 138914446 in words is "one hundred thirty-eight million, nine hundred fourteen thousand, four hundred forty-six".