20280124 has 12 divisors (see below), whose sum is σ = 36245664. Its totient is φ = 9924224.

The previous prime is 20280119. The next prime is 20280149. The reversal of 20280124 is 42108202.

It is a super-2 number, since 2×20280124² = 822566858910752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53749 + ... + 54124.

It is an arithmetic number, because the mean of its divisors is an integer number (3020472).

Almost surely, 2^20280124 is an apocalyptic number.

It is an amenable number.

20280124 is a deficient number, since it is larger than the sum of its proper divisors (15965540).

20280124 is a wasteful number, since it uses less digits than its factorization.

20280124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107924 (or 107922 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 20280124 is about 4503.3458672414. The cubic root of 20280124 is about 272.7031798380.

Adding to 20280124 its reverse (42108202), we get a palindrome (62388326).

The spelling of 20280124 in words is "twenty million, two hundred eighty thousand, one hundred twenty-four".