138304760 has 32 divisors (see below), whose sum is σ = 339476400. Its totient is φ = 50292480.

The previous prime is 138304739. The next prime is 138304763. The reversal of 138304760 is 67403831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138304763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156725 + ... + 157604.

Almost surely, 2^138304760 is an apocalyptic number.

138304760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138304760 is an abundant number, since it is smaller than the sum of its proper divisors (201171640).

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

138304760 is a wasteful number, since it uses less digits than its factorization.

138304760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314351 (or 314347 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 138304760 is about 11760.3044178286. The cubic root of 138304760 is about 517.1450544326.

The spelling of 138304760 in words is "one hundred thirty-eight million, three hundred four thousand, seven hundred sixty".