20029424 has 20 divisors (see below), whose sum is σ = 39116544. Its totient is φ = 9934848.

The previous prime is 20029403. The next prime is 20029453. The reversal of 20029424 is 42492002.

It is a self number, because there is not a number n which added to its sum of digits gives 20029424.

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, 2897 + ... + 6960.

Almost surely, 2^20029424 is an apocalyptic number.

It is an amenable number.

20029424 is a deficient number, since it is larger than the sum of its proper divisors (19087120).

20029424 is a wasteful number, since it uses less digits than its factorization.

20029424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992 (or 9986 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20029424 is about 4475.4244491445. The cubic root of 20029424 is about 271.5748114731.

The spelling of 20029424 in words is "twenty million, twenty-nine thousand, four hundred twenty-four".