20430124 has 72 divisors (see below), whose sum is σ = 45045504. Its totient is φ = 8025600.

The previous prime is 20430121. The next prime is 20430127. The reversal of 20430124 is 42103402.

It is an interprime number because it is at equal distance from previous prime (20430121) and next prime (20430127).

It is a junction number, because it is equal to n+sod(n) for n = 20430098 and 20430107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106869 + ... + 107059.

It is an arithmetic number, because the mean of its divisors is an integer number (625632).

Almost surely, 2^20430124 is an apocalyptic number.

It is an amenable number.

20430124 is an abundant number, since it is smaller than the sum of its proper divisors (24615380).

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

20430124 is a wasteful number, since it uses less digits than its factorization.

20430124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20430124 is about 4519.9694689234. The cubic root of 20430124 is about 273.3738699877.

Adding to 20430124 its reverse (42103402), we get a palindrome (62533526).

The spelling of 20430124 in words is "twenty million, four hundred thirty thousand, one hundred twenty-four".