20419484 has 12 divisors (see below), whose sum is σ = 35768544. Its totient is φ = 10199904.

The previous prime is 20419481. The next prime is 20419501. The reversal of 20419484 is 48491402.

It is a self number, because there is not a number n which added to its sum of digits gives 20419484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419481) 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, 4232 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (2980712).

Almost surely, 2^20419484 is an apocalyptic number.

It is an amenable number.

20419484 is a deficient number, since it is larger than the sum of its proper divisors (15349060).

20419484 is a wasteful number, since it uses less digits than its factorization.

20419484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924 (or 4922 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20419484 is about 4518.7923165377. The cubic root of 20419484 is about 273.3264040811.

The spelling of 20419484 in words is "twenty million, four hundred nineteen thousand, four hundred eighty-four".