138232446 has 32 divisors (see below), whose sum is σ = 302323968. Its totient is φ = 41787840.

The previous prime is 138232439. The next prime is 138232453. The reversal of 138232446 is 644232831.

138232446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138232439) and next prime (138232453).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 27871 + ... + 32453.

It is an arithmetic number, because the mean of its divisors is an integer number (9447624).

Almost surely, 2^138232446 is an apocalyptic number.

138232446 is an abundant number, since it is smaller than the sum of its proper divisors (164091522).

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

138232446 is a wasteful number, since it uses less digits than its factorization.

138232446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056.

The product of its digits is 27648, while the sum is 33.

The square root of 138232446 is about 11757.2295205971. The cubic root of 138232446 is about 517.0549072650.

The spelling of 138232446 in words is "one hundred thirty-eight million, two hundred thirty-two thousand, four hundred forty-six".