20038424 has 16 divisors (see below), whose sum is σ = 42939600. Its totient is φ = 8587872.

The previous prime is 20038411. The next prime is 20038433. The reversal of 20038424 is 42483002.

It is a self number, because there is not a number n which added to its sum of digits gives 20038424.

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, 178859 + ... + 178970.

It is an arithmetic number, because the mean of its divisors is an integer number (2683725).

Almost surely, 2^20038424 is an apocalyptic number.

It is an amenable number.

20038424 is an abundant number, since it is smaller than the sum of its proper divisors (22901176).

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

20038424 is a wasteful number, since it uses less digits than its factorization.

20038424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357842 (or 357838 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20038424 is about 4476.4298274406. The cubic root of 20038424 is about 271.6154817608.

The spelling of 20038424 in words is "twenty million, thirty-eight thousand, four hundred twenty-four".