20045276 has 6 divisors (see below), whose sum is σ = 35079240. Its totient is φ = 10022636.

The previous prime is 20045257. The next prime is 20045279. The reversal of 20045276 is 67254002.

20045276 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505656 + ... + 2505663.

It is an arithmetic number, because the mean of its divisors is an integer number (5846540).

Almost surely, 2^20045276 is an apocalyptic number.

It is an amenable number.

20045276 is a deficient number, since it is larger than the sum of its proper divisors (15033964).

20045276 is a wasteful number, since it uses less digits than its factorization.

20045276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011323 (or 5011321 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20045276 is about 4477.1951040802. The cubic root of 20045276 is about 271.6464372423.

Adding to 20045276 its reverse (67254002), we get a palindrome (87299278).

The spelling of 20045276 in words is "twenty million, forty-five thousand, two hundred seventy-six".