20318826 has 32 divisors (see below), whose sum is σ = 45766656. Its totient is φ = 5958000.

The previous prime is 20318819. The next prime is 20318839. The reversal of 20318826 is 62881302.

It is a junction number, because it is equal to n+sod(n) for n = 20318793 and 20318802.

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 15 ways as a sum of consecutive naturals, for example, 2920 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (1430208).

Almost surely, 2^20318826 is an apocalyptic number.

20318826 is an abundant number, since it is smaller than the sum of its proper divisors (25447830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20318826 is a wasteful number, since it uses less digits than its factorization.

20318826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 20318826 is about 4507.6408463852. The cubic root of 20318826 is about 272.8765425490.

The spelling of 20318826 in words is "twenty million, three hundred eighteen thousand, eight hundred twenty-six".