132638406 has 8 divisors (see below), whose sum is σ = 265276824. Its totient is φ = 44212800.

The previous prime is 132638347. The next prime is 132638423. The reversal of 132638406 is 604836231.

It is a sphenic number, since it is the product of 3 distinct primes.

132638406 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11053195 + ... + 11053206.

It is an arithmetic number, because the mean of its divisors is an integer number (33159603).

Almost surely, 2^132638406 is an apocalyptic number.

132638406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

132638406 is a wasteful number, since it uses less digits than its factorization.

132638406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22106406.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 132638406 is about 11516.8748365171. The cubic root of 132638406 is about 509.9838595430.

The spelling of 132638406 in words is "one hundred thirty-two million, six hundred thirty-eight thousand, four hundred six".