20293424 has 20 divisors (see below), whose sum is σ = 39763080. Its totient is φ = 10032000.

The previous prime is 20293421. The next prime is 20293439. The reversal of 20293424 is 42439202.

It is a junction number, because it is equal to n+sod(n) for n = 20293393 and 20293402.

It is not an unprimeable number, because it can be changed into a prime (20293421) 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, 5702 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (1988154).

Almost surely, 2^20293424 is an apocalyptic number.

It is an amenable number.

20293424 is a deficient number, since it is larger than the sum of its proper divisors (19469656).

20293424 is a wasteful number, since it uses less digits than its factorization.

20293424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14348 (or 14342 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20293424 is about 4504.8223050416. The cubic root of 20293424 is about 272.7627810468.

The spelling of 20293424 in words is "twenty million, two hundred ninety-three thousand, four hundred twenty-four".