20045032 has 32 divisors (see below), whose sum is σ = 44438400. Its totient is φ = 8293824.

The previous prime is 20045017. The next prime is 20045063. The reversal of 20045032 is 23054002.

It is a junction number, because it is equal to n+sod(n) for n = 20044997 and 20045015.

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, 4548 + ... + 7795.

It is an arithmetic number, because the mean of its divisors is an integer number (1388700).

Almost surely, 2^20045032 is an apocalyptic number.

It is an amenable number.

20045032 is an abundant number, since it is smaller than the sum of its proper divisors (24393368).

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

20045032 is a wasteful number, since it uses less digits than its factorization.

20045032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385 (or 12381 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20045032 is about 4477.1678547939. The cubic root of 20045032 is about 271.6453350374.

Adding to 20045032 its reverse (23054002), we get a palindrome (43099034).

The spelling of 20045032 in words is "twenty million, forty-five thousand, thirty-two".