123624420 has 24 divisors (see below), whose sum is σ = 346148544. Its totient is φ = 32966496.

The previous prime is 123624409. The next prime is 123624439. The reversal of 123624420 is 24426321.

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 7 ways as a sum of consecutive naturals, for example, 1030144 + ... + 1030263.

It is an arithmetic number, because the mean of its divisors is an integer number (14422856).

Almost surely, 2^123624420 is an apocalyptic number.

123624420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123624420 is an abundant number, since it is smaller than the sum of its proper divisors (222524124).

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

123624420 is a wasteful number, since it uses less digits than its factorization.

123624420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060419 (or 2060417 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 123624420 is about 11118.6518967004. The cubic root of 123624420 is about 498.1591240023.

The spelling of 123624420 in words is "one hundred twenty-three million, six hundred twenty-four thousand, four hundred twenty".