20001096 has 24 divisors (see below), whose sum is σ = 54169830. Its totient is φ = 6667008.

The previous prime is 20001083. The next prime is 20001139. The reversal of 20001096 is 69010002.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 9696996 = 3210^2 + 3114^2 .

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

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

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, 138825 + ... + 138968.

Almost surely, 2^20001096 is an apocalyptic number.

It is an amenable number.

20001096 is an abundant number, since it is smaller than the sum of its proper divisors (34168734).

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

20001096 is a wasteful number, since it uses less digits than its factorization.

20001096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277805 (or 277798 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 20001096 is about 4472.2584898460. The cubic root of 20001096 is about 271.4467199051.

Adding to 20001096 its reverse (69010002), we get a palindrome (89011098).

The spelling of 20001096 in words is "twenty million, one thousand, ninety-six".