18900826 has 8 divisors (see below), whose sum is σ = 32401440. Its totient is φ = 8100348.

The previous prime is 18900823. The next prime is 18900851. The reversal of 18900826 is 62800981.

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 = 18900791 and 18900800.

It is not an unprimeable number, because it can be changed into a prime (18900823) by changing a digit.

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, 675016 + ... + 675043.

It is an arithmetic number, because the mean of its divisors is an integer number (4050180).

Almost surely, 2^18900826 is an apocalyptic number.

18900826 is a deficient number, since it is larger than the sum of its proper divisors (13500614).

18900826 is a wasteful number, since it uses less digits than its factorization.

18900826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350068.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 18900826 is about 4347.5080218442. The cubic root of 18900826 is about 266.3750809356.

The spelling of 18900826 in words is "eighteen million, nine hundred thousand, eight hundred twenty-six".