138224086224 has 80 divisors (see below), whose sum is σ = 408276761472. Its totient is φ = 39474537984.

The previous prime is 138224086207. The next prime is 138224086243. The reversal of 138224086224 is 422680422831.

It is a Cunningham number, because it is equal to 371785²-1.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650622 + ... + 836514.

Almost surely, 2^138224086224 is an apocalyptic number.

138224086224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138224086224 is an abundant number, since it is smaller than the sum of its proper divisors (270052675248).

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

138224086224 is a wasteful number, since it uses less digits than its factorization.

138224086224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188124 (or 188118 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 138224086224 in words is "one hundred thirty-eight billion, two hundred twenty-four million, eighty-six thousand, two hundred twenty-four".