20419084 has 18 divisors (see below), whose sum is σ = 41567820. Its totient is φ = 8750952.

The previous prime is 20419043. The next prime is 20419097. The reversal of 20419084 is 48091402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 51894 + ... + 52285.

Almost surely, 2^20419084 is an apocalyptic number.

It is an amenable number.

20419084 is an abundant number, since it is smaller than the sum of its proper divisors (21148736).

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

20419084 is a wasteful number, since it uses less digits than its factorization.

20419084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104197 (or 104188 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20419084 is about 4518.7480567077. The cubic root of 20419084 is about 273.3246193269.

The spelling of 20419084 in words is "twenty million, four hundred nineteen thousand, eighty-four".