138448833 has 32 divisors (see below), whose sum is σ = 200558592. Its totient is φ = 84633600.

The previous prime is 138448823. The next prime is 138448847. The reversal of 138448833 is 338844831.

It is not a de Polignac number, because 138448833 - 2⁶ = 138448769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138448823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594085 + ... + 594317.

It is an arithmetic number, because the mean of its divisors is an integer number (6267456).

Almost surely, 2^138448833 is an apocalyptic number.

It is an amenable number.

138448833 is a deficient number, since it is larger than the sum of its proper divisors (62109759).

138448833 is a wasteful number, since it uses less digits than its factorization.

138448833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its digits is 221184, while the sum is 42.

The square root of 138448833 is about 11766.4282176028. The cubic root of 138448833 is about 517.3245632772.

The spelling of 138448833 in words is "one hundred thirty-eight million, four hundred forty-eight thousand, eight hundred thirty-three".