123336828 has 36 divisors (see below), whose sum is σ = 328178760. Its totient is φ = 38948256.

The previous prime is 123336803. The next prime is 123336841. The reversal of 123336828 is 828633321.

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

It is a super-2 number, since 2×123336828² = 30423946282203168, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 123336792 and 123336801.

It is a congruent number.

It is an unprimeable number.

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, 89475 + ... + 90842.

Almost surely, 2^123336828 is an apocalyptic number.

123336828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123336828 is an abundant number, since it is smaller than the sum of its proper divisors (204841932).

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

123336828 is a wasteful number, since it uses less digits than its factorization.

123336828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180346 (or 180341 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 123336828 is about 11105.7115035463. The cubic root of 123336828 is about 497.7725288134.

The spelling of 123336828 in words is "one hundred twenty-three million, three hundred thirty-six thousand, eight hundred twenty-eight".