20424032 has 24 divisors (see below), whose sum is σ = 40430376. Its totient is φ = 10156032.

The previous prime is 20423989. The next prime is 20424043. The reversal of 20424032 is 23042402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424032.

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, 4523 + ... + 7829.

It is an arithmetic number, because the mean of its divisors is an integer number (1684599).

Almost surely, 2^20424032 is an apocalyptic number.

It is an amenable number.

20424032 is a deficient number, since it is larger than the sum of its proper divisors (20006344).

20424032 is a wasteful number, since it uses less digits than its factorization.

20424032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3502 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20424032 is about 4519.2955203217. The cubic root of 20424032 is about 273.3466950967.

Adding to 20424032 its reverse (23042402), we get a palindrome (43466434).

The spelling of 20424032 in words is "twenty million, four hundred twenty-four thousand, thirty-two".