123428592 has 60 divisors (see below), whose sum is σ = 394778800. Its totient is φ = 35265024.

The previous prime is 123428561. The next prime is 123428597. The reversal of 123428592 is 295824321.

It is a happy number.

123428592 is a `hidden beast` number, since 1 + 23 + 42 + 8 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123428597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60217 + ... + 62232.

Almost surely, 2^123428592 is an apocalyptic number.

123428592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123428592 is an abundant number, since it is smaller than the sum of its proper divisors (271350208).

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

123428592 is a wasteful number, since it uses less digits than its factorization.

123428592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122470 (or 122461 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 123428592 is about 11109.8421230907. The cubic root of 123428592 is about 497.8959476806.

The spelling of 123428592 in words is "one hundred twenty-three million, four hundred twenty-eight thousand, five hundred ninety-two".