138834264 has 16 divisors (see below), whose sum is σ = 347085720. Its totient is φ = 46278080.

The previous prime is 138834263. The next prime is 138834277. The reversal of 138834264 is 462438831.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138834263) 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 in 3 ways as a sum of consecutive naturals, for example, 2892357 + ... + 2892404.

Almost surely, 2^138834264 is an apocalyptic number.

It is an amenable number.

138834264 is an abundant number, since it is smaller than the sum of its proper divisors (208251456).

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

138834264 is a wasteful number, since it uses less digits than its factorization.

138834264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784770 (or 5784766 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 138834264 is about 11782.7952540982. The cubic root of 138834264 is about 517.8041825308.

The spelling of 138834264 in words is "one hundred thirty-eight million, eight hundred thirty-four thousand, two hundred sixty-four".