20193884 has 12 divisors (see below), whose sum is σ = 37199400. Its totient is φ = 9565488.

The previous prime is 20193883. The next prime is 20193913. The reversal of 20193884 is 48839102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20193883) 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, 132779 + ... + 132930.

It is an arithmetic number, because the mean of its divisors is an integer number (3099950).

Almost surely, 2^20193884 is an apocalyptic number.

It is an amenable number.

20193884 is a deficient number, since it is larger than the sum of its proper divisors (17005516).

20193884 is a wasteful number, since it uses less digits than its factorization.

20193884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265732 (or 265730 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 20193884 is about 4493.7605632699. The cubic root of 20193884 is about 272.3160793550.

The spelling of 20193884 in words is "twenty million, one hundred ninety-three thousand, eight hundred eighty-four".