20880326 has 4 divisors (see below), whose sum is σ = 31320492. Its totient is φ = 10440162.

The previous prime is 20880323. The next prime is 20880347. The reversal of 20880326 is 62308802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62308802 = 2 ⋅31154401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20880323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5220080 + ... + 5220083.

It is an arithmetic number, because the mean of its divisors is an integer number (7830123).

Almost surely, 2^20880326 is an apocalyptic number.

20880326 is a deficient number, since it is larger than the sum of its proper divisors (10440166).

20880326 is a wasteful number, since it uses less digits than its factorization.

20880326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440165.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20880326 is about 4569.4995349600. The cubic root of 20880326 is about 275.3673372021.

The spelling of 20880326 in words is "twenty million, eight hundred eighty thousand, three hundred twenty-six".