124306020 has 36 divisors (see below), whose sum is σ = 377062140. Its totient is φ = 33148224.

The previous prime is 124305997. The next prime is 124306027. The reversal of 124306020 is 20603421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65415744 + 58890276 = 8088^2 + 7674^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 124305984 and 124306002.

It is not an unprimeable number, because it can be changed into a prime (124306027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345115 + ... + 345474.

Almost surely, 2^124306020 is an apocalyptic number.

124306020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124306020 is an abundant number, since it is smaller than the sum of its proper divisors (252756120).

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

124306020 is a wasteful number, since it uses less digits than its factorization.

124306020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690604 (or 690599 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 124306020 is about 11149.2609620548. The cubic root of 124306020 is about 499.0729756472.

Adding to 124306020 its reverse (20603421), we get a palindrome (144909441).

The spelling of 124306020 in words is "one hundred twenty-four million, three hundred six thousand, twenty".