20124704 has 24 divisors (see below), whose sum is σ = 40900608. Its totient is φ = 9737280.

The previous prime is 20124661. The next prime is 20124733. The reversal of 20124704 is 40742102.

It is a super-2 number, since 2×20124704² = 810007422175232, which contains 22 as substring.

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, 9152 + ... + 11135.

It is an arithmetic number, because the mean of its divisors is an integer number (1704192).

Almost surely, 2^20124704 is an apocalyptic number.

It is an amenable number.

20124704 is an abundant number, since it is smaller than the sum of its proper divisors (20775904).

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

20124704 is a wasteful number, since it uses less digits than its factorization.

20124704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20328 (or 20320 counting only the distinct ones).

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

The square root of 20124704 is about 4486.0566202401. The cubic root of 20124704 is about 272.0047577022.

Adding to 20124704 its reverse (40742102), we get a palindrome (60866806).

The spelling of 20124704 in words is "twenty million, one hundred twenty-four thousand, seven hundred four".