20823484 has 24 divisors (see below), whose sum is σ = 40134528. Its totient is φ = 9374640.

The previous prime is 20823437. The next prime is 20823493. The reversal of 20823484 is 48432802.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2497 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (1672272).

Almost surely, 2^20823484 is an apocalyptic number.

It is an amenable number.

20823484 is a deficient number, since it is larger than the sum of its proper divisors (19311044).

20823484 is a wasteful number, since it uses less digits than its factorization.

20823484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545 (or 4543 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 20823484 is about 4563.2755779155. The cubic root of 20823484 is about 275.1172348632.

The spelling of 20823484 in words is "twenty million, eight hundred twenty-three thousand, four hundred eighty-four".