20419392 has 56 divisors (see below), whose sum is σ = 61748416. Its totient is φ = 5833728.

The previous prime is 20419391. The next prime is 20419403. The reversal of 20419392 is 29391402.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6253 + ... + 8940.

Almost surely, 2^20419392 is an apocalyptic number.

It is an amenable number.

20419392 is an abundant number, since it is smaller than the sum of its proper divisors (41329024).

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

20419392 is a wasteful number, since it uses less digits than its factorization.

20419392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215 (or 15205 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20419392 is about 4518.7821368152. The cubic root of 20419392 is about 273.3259935897.

The spelling of 20419392 in words is "twenty million, four hundred nineteen thousand, three hundred ninety-two".