20489326 has 32 divisors (see below), whose sum is σ = 37287936. Its totient is φ = 8316000.

The previous prime is 20489311. The next prime is 20489327. The reversal of 20489326 is 62398402.

It is a junction number, because it is equal to n+sod(n) for n = 20489291 and 20489300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20489327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7711 + ... + 10021.

It is an arithmetic number, because the mean of its divisors is an integer number (1165248).

Almost surely, 2^20489326 is an apocalyptic number.

20489326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20489326 is a deficient number, since it is larger than the sum of its proper divisors (16798610).

20489326 is a wasteful number, since it uses less digits than its factorization.

20489326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20489326 is about 4526.5136694812. The cubic root of 20489326 is about 273.6376744257.

The spelling of 20489326 in words is "twenty million, four hundred eighty-nine thousand, three hundred twenty-six".