123345628 has 24 divisors (see below), whose sum is σ = 251348832. Its totient is φ = 51864384.

The previous prime is 123345611. The next prime is 123345631. The reversal of 123345628 is 826543321.

It is a super-3 number, since 3×123345628³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123345593 and 123345602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40075 + ... + 43042.

It is an arithmetic number, because the mean of its divisors is an integer number (10472868).

Almost surely, 2^123345628 is an apocalyptic number.

It is an amenable number.

123345628 is an abundant number, since it is smaller than the sum of its proper divisors (128003204).

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

123345628 is a wasteful number, since it uses less digits than its factorization.

123345628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83181 (or 83179 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 123345628 is about 11106.1076890151. The cubic root of 123345628 is about 497.7843671106.

Adding to 123345628 its reverse (826543321), we get a palindrome (949888949).

The spelling of 123345628 in words is "one hundred twenty-three million, three hundred forty-five thousand, six hundred twenty-eight".