20459196 has 24 divisors (see below), whose sum is σ = 53042640. Its totient is φ = 6819696.

The previous prime is 20459189. The next prime is 20459203. The reversal of 20459196 is 69195402.

It is an interprime number because it is at equal distance from previous prime (20459189) and next prime (20459203).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20459196.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 94611 + ... + 94826.

It is an arithmetic number, because the mean of its divisors is an integer number (2210110).

Almost surely, 2^20459196 is an apocalyptic number.

It is an amenable number.

20459196 is an abundant number, since it is smaller than the sum of its proper divisors (32583444).

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

20459196 is a wasteful number, since it uses less digits than its factorization.

20459196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189450 (or 189442 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 20459196 is about 4523.1842765910. The cubic root of 20459196 is about 273.5034785722.

The spelling of 20459196 in words is "twenty million, four hundred fifty-nine thousand, one hundred ninety-six".