20740124 has 12 divisors (see below), whose sum is σ = 36331344. Its totient is φ = 10359744.

The previous prime is 20740099. The next prime is 20740127. The reversal of 20740124 is 42104702.

It is a junction number, because it is equal to n+sod(n) for n = 20740096 and 20740105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572 + ... + 7364.

It is an arithmetic number, because the mean of its divisors is an integer number (3027612).

Almost surely, 2^20740124 is an apocalyptic number.

It is an amenable number.

20740124 is a deficient number, since it is larger than the sum of its proper divisors (15591220).

20740124 is a wasteful number, since it uses less digits than its factorization.

20740124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164 (or 5162 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 20740124 is about 4554.1326287231. The cubic root of 20740124 is about 274.7496299744.

Adding to 20740124 its reverse (42104702), we get a palindrome (62844826).

The spelling of 20740124 in words is "twenty million, seven hundred forty thousand, one hundred twenty-four".