138848592 has 40 divisors (see below), whose sum is σ = 361532416. Its totient is φ = 45916416.

The previous prime is 138848587. The next prime is 138848609. The reversal of 138848592 is 295848831.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5293 + ... + 17484.

Almost surely, 2^138848592 is an apocalyptic number.

138848592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138848592 is an abundant number, since it is smaller than the sum of its proper divisors (222683824).

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

138848592 is a wasteful number, since it uses less digits than its factorization.

138848592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22915 (or 22909 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 138848592 is about 11783.4032435456. The cubic root of 138848592 is about 517.8219947598.

The spelling of 138848592 in words is "one hundred thirty-eight million, eight hundred forty-eight thousand, five hundred ninety-two".