338138532 has 36 divisors (see below), whose sum is σ = 855687196. Its totient is φ = 112587840.

The previous prime is 338138531. The next prime is 338138533. The reversal of 338138532 is 235831833.

It is an interprime number because it is at equal distance from previous prime (338138531) and next prime (338138533).

It can be written as a sum of positive squares in 2 ways, for example, as 206669376 + 131469156 = 14376^2 + 11466^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×338138532² = 228675333646230048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (338138531) 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 11 ways as a sum of consecutive naturals, for example, 31182 + ... + 40602.

Almost surely, 2^338138532 is an apocalyptic number.

It is an amenable number.

338138532 is an abundant number, since it is smaller than the sum of its proper divisors (517548664).

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

338138532 is a wasteful number, since it uses less digits than its factorization.

338138532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428 (or 10423 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 338138532 is about 18388.5434986026. The cubic root of 338138532 is about 696.6771303522.

The spelling of 338138532 in words is "three hundred thirty-eight million, one hundred thirty-eight thousand, five hundred thirty-two".