20459232 has 36 divisors (see below), whose sum is σ = 58181760. Its totient is φ = 6819648.

The previous prime is 20459227. The next prime is 20459249. The reversal of 20459232 is 23295402.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20459196 and 20459205.

It is a congruent number.

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, 35232 + ... + 35807.

It is an arithmetic number, because the mean of its divisors is an integer number (1616160).

Almost surely, 2^20459232 is an apocalyptic number.

It is an amenable number.

20459232 is an abundant number, since it is smaller than the sum of its proper divisors (37722528).

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

20459232 is a wasteful number, since it uses less digits than its factorization.

20459232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71055 (or 71044 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20459232 is about 4523.1882560866. The cubic root of 20459232 is about 273.5036389910.

The spelling of 20459232 in words is "twenty million, four hundred fifty-nine thousand, two hundred thirty-two".