20419372 has 12 divisors (see below), whose sum is σ = 36088416. Its totient is φ = 10108400.

The previous prime is 20419349. The next prime is 20419381. The reversal of 20419372 is 27391402.

It is a self number, because there is not a number n which added to its sum of digits gives 20419372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24868 + ... + 25675.

It is an arithmetic number, because the mean of its divisors is an integer number (3007368).

Almost surely, 2^20419372 is an apocalyptic number.

It is an amenable number.

20419372 is a deficient number, since it is larger than the sum of its proper divisors (15669044).

20419372 is a wasteful number, since it uses less digits than its factorization.

20419372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50648 (or 50646 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20419372 is about 4518.7799238290. The cubic root of 20419372 is about 273.3259043523.

The spelling of 20419372 in words is "twenty million, four hundred nineteen thousand, three hundred seventy-two".