138358352 has 20 divisors (see below), whose sum is σ = 292439616. Its totient is φ = 62890080.

The previous prime is 138358351. The next prime is 138358373. The reversal of 138358352 is 253853831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138358351) 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 3 ways as a sum of consecutive naturals, for example, 392888 + ... + 393239.

Almost surely, 2^138358352 is an apocalyptic number.

It is an amenable number.

138358352 is an abundant number, since it is smaller than the sum of its proper divisors (154081264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138358352 is a wasteful number, since it uses less digits than its factorization.

138358352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786146 (or 786140 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 138358352 is about 11762.5827095923. The cubic root of 138358352 is about 517.2118423454.

The spelling of 138358352 in words is "one hundred thirty-eight million, three hundred fifty-eight thousand, three hundred fifty-two".