20748326 has 8 divisors (see below), whose sum is σ = 31149360. Its totient is φ = 10365208.

The previous prime is 20748319. The next prime is 20748341. The reversal of 20748326 is 62384702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20748292 and 20748301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (3893670).

Almost surely, 2^20748326 is an apocalyptic number.

20748326 is a deficient number, since it is larger than the sum of its proper divisors (10401034).

20748326 is a wasteful number, since it uses less digits than its factorization.

20748326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 20748326 is about 4555.0330404949. The cubic root of 20748326 is about 274.7858431856.

The spelling of 20748326 in words is "twenty million, seven hundred forty-eight thousand, three hundred twenty-six".