124420420 has 24 divisors (see below), whose sum is σ = 261493848. Its totient is φ = 49728000.

The previous prime is 124420393. The next prime is 124420427. The reversal of 124420420 is 24024421.

It can be written as a sum of positive squares in 4 ways, for example, as 20502784 + 103917636 = 4528^2 + 10194^2 .

It is not an unprimeable number, because it can be changed into a prime (124420427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43020 + ... + 45820.

It is an arithmetic number, because the mean of its divisors is an integer number (10895577).

Almost surely, 2^124420420 is an apocalyptic number.

124420420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124420420 is an abundant number, since it is smaller than the sum of its proper divisors (137073428).

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

124420420 is a wasteful number, since it uses less digits than its factorization.

124420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031 (or 5029 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 124420420 is about 11154.3901671046. The cubic root of 124420420 is about 499.2260292233.

Adding to 124420420 its reverse (24024421), we get a palindrome (148444841).

The spelling of 124420420 in words is "one hundred twenty-four million, four hundred twenty thousand, four hundred twenty".