123356460 has 48 divisors (see below), whose sum is σ = 346816512. Its totient is φ = 32760000.

The previous prime is 123356423. The next prime is 123356461. The reversal of 123356460 is 64653321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (123356461) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10965 + ... + 19155.

It is an arithmetic number, because the mean of its divisors is an integer number (7225344).

Almost surely, 2^123356460 is an apocalyptic number.

123356460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123356460 is an abundant number, since it is smaller than the sum of its proper divisors (223460052).

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

123356460 is a wasteful number, since it uses less digits than its factorization.

123356460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 123356460 is about 11106.5953379062. The cubic root of 123356460 is about 497.7989382052.

The spelling of 123356460 in words is "one hundred twenty-three million, three hundred fifty-six thousand, four hundred sixty".