124666420 has 24 divisors (see below), whose sum is σ = 263164104. Its totient is φ = 49606656.

The previous prime is 124666411. The next prime is 124666433. The reversal of 124666420 is 24666421.

124666420 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 4 ways, for example, as 27604516 + 97061904 = 5254^2 + 9852^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12289 + ... + 20008.

It is an arithmetic number, because the mean of its divisors is an integer number (10965171).

Almost surely, 2^124666420 is an apocalyptic number.

124666420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124666420 is an abundant number, since it is smaller than the sum of its proper divisors (138497684).

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

124666420 is a wasteful number, since it uses less digits than its factorization.

124666420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32499 (or 32497 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 124666420 is about 11165.4117702842. The cubic root of 124666420 is about 499.5548304324.

Subtracting from 124666420 its reverse (24666421), we obtain a palindrome (99999999).

The spelling of 124666420 in words is "one hundred twenty-four million, six hundred sixty-six thousand, four hundred twenty".