20193384 has 16 divisors (see below), whose sum is σ = 50483520. Its totient is φ = 6731120.

The previous prime is 20193347. The next prime is 20193419. The reversal of 20193384 is 48339102.

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, 420672 + ... + 420719.

It is an arithmetic number, because the mean of its divisors is an integer number (3155220).

Almost surely, 2^20193384 is an apocalyptic number.

20193384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20193384 is an abundant number, since it is smaller than the sum of its proper divisors (30290136).

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

20193384 is a wasteful number, since it uses less digits than its factorization.

20193384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841400 (or 841396 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20193384 is about 4493.7049302330. The cubic root of 20193384 is about 272.3138318236.

The spelling of 20193384 in words is "twenty million, one hundred ninety-three thousand, three hundred eighty-four".