20803032 has 24 divisors (see below), whose sum is σ = 56341740. Its totient is φ = 6934320.

The previous prime is 20803021. The next prime is 20803061. The reversal of 20803032 is 23030802.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×20803032² = 865532280786048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20802996 and 20803014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144394 + ... + 144537.

Almost surely, 2^20803032 is an apocalyptic number.

It is an amenable number.

20803032 is an abundant number, since it is smaller than the sum of its proper divisors (35538708).

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

20803032 is a wasteful number, since it uses less digits than its factorization.

20803032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288943 (or 288936 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20803032 is about 4561.0340932731. The cubic root of 20803032 is about 275.0271356143.

Adding to 20803032 its reverse (23030802), we get a palindrome (43833834).

The spelling of 20803032 in words is "twenty million, eight hundred three thousand, thirty-two".