20326672 has 10 divisors (see below), whose sum is σ = 39382958. Its totient is φ = 10163328.

The previous prime is 20326667. The next prime is 20326681. The reversal of 20326672 is 27662302.

It can be written as a sum of positive squares in only one way, i.e., 16777216 + 3549456 = 4096^2 + 1884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20326672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635193 + ... + 635224.

Almost surely, 2^20326672 is an apocalyptic number.

It is an amenable number.

20326672 is a deficient number, since it is larger than the sum of its proper divisors (19056286).

20326672 is a wasteful number, since it uses less digits than its factorization.

20326672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270425 (or 1270419 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20326672 is about 4508.5110624240. The cubic root of 20326672 is about 272.9116612747.

Adding to 20326672 its reverse (27662302), we get a palindrome (47988974).

The spelling of 20326672 in words is "twenty million, three hundred twenty-six thousand, six hundred seventy-two".