123406032 has 40 divisors (see below), whose sum is σ = 319488480. Its totient is φ = 41046400.

The previous prime is 123406021. The next prime is 123406081. The reversal of 123406032 is 230604321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21907 + ... + 26957.

It is an arithmetic number, because the mean of its divisors is an integer number (7987212).

Almost surely, 2^123406032 is an apocalyptic number.

123406032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123406032 is an abundant number, since it is smaller than the sum of its proper divisors (196082448).

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

123406032 is a wasteful number, since it uses less digits than its factorization.

123406032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123406032 is about 11108.8267607340. The cubic root of 123406032 is about 497.8656110657.

The spelling of 123406032 in words is "one hundred twenty-three million, four hundred six thousand, thirty-two".