138350352 has 160 divisors (see below), whose sum is σ = 441614592. Its totient is φ = 36421632.

The previous prime is 138350351. The next prime is 138350383. The reversal of 138350352 is 253053831.

It is not an unprimeable number, because it can be changed into a prime (138350351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302508 + ... + 302964.

Almost surely, 2^138350352 is an apocalyptic number.

138350352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138350352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220807296).

138350352 is an abundant number, since it is smaller than the sum of its proper divisors (303264240).

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

138350352 is a wasteful number, since it uses less digits than its factorization.

138350352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 138350352 is about 11762.2426433057. The cubic root of 138350352 is about 517.2018736074.

The spelling of 138350352 in words is "one hundred thirty-eight million, three hundred fifty thousand, three hundred fifty-two".