138274824 has 16 divisors (see below), whose sum is σ = 345687120. Its totient is φ = 46091600.

The previous prime is 138274789. The next prime is 138274859. The reversal of 138274824 is 428472831.

It is an interprime number because it is at equal distance from previous prime (138274789) and next prime (138274859).

It is an unprimeable number.

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, 2880702 + ... + 2880749.

It is an arithmetic number, because the mean of its divisors is an integer number (21605445).

Almost surely, 2^138274824 is an apocalyptic number.

It is an amenable number.

138274824 is an abundant number, since it is smaller than the sum of its proper divisors (207412296).

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

138274824 is a wasteful number, since it uses less digits than its factorization.

138274824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761460 (or 5761456 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 138274824 is about 11759.0315927801. The cubic root of 138274824 is about 517.1077398059.

The spelling of 138274824 in words is "one hundred thirty-eight million, two hundred seventy-four thousand, eight hundred twenty-four".