123828732 has 36 divisors (see below), whose sum is σ = 317306080. Its totient is φ = 40709952.

The previous prime is 123828721. The next prime is 123828737. The reversal of 123828732 is 237828321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 (123828737) 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, 20932 + ... + 26187.

Almost surely, 2^123828732 is an apocalyptic number.

123828732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123828732 is an abundant number, since it is smaller than the sum of its proper divisors (193477348).

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

123828732 is a wasteful number, since it uses less digits than its factorization.

123828732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47202 (or 47197 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 123828732 is about 11127.8359082078. The cubic root of 123828732 is about 498.4334060263.

The spelling of 123828732 in words is "one hundred twenty-three million, eight hundred twenty-eight thousand, seven hundred thirty-two".