138350944 has 12 divisors (see below), whose sum is σ = 272378484. Its totient is φ = 69175456.

The previous prime is 138350941. The next prime is 138350959. The reversal of 138350944 is 449053831.

It is a super-2 number, since 2×138350944² = 38281967411382272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138350941) 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 as a sum of consecutive naturals, namely, 2161702 + ... + 2161765.

It is an arithmetic number, because the mean of its divisors is an integer number (22698207).

Almost surely, 2^138350944 is an apocalyptic number.

It is an amenable number.

138350944 is a deficient number, since it is larger than the sum of its proper divisors (134027540).

138350944 is an equidigital number, since it uses as much as digits as its factorization.

138350944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323477 (or 4323469 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 138350944 is about 11762.2678085478. The cubic root of 138350944 is about 517.2026113072.

The spelling of 138350944 in words is "one hundred thirty-eight million, three hundred fifty thousand, nine hundred forty-four".