18252008 has 16 divisors (see below), whose sum is σ = 36024000. Its totient is φ = 8645616.

The previous prime is 18252001. The next prime is 18252023. The reversal of 18252008 is 80025281.

It is not an unprimeable number, because it can be changed into a prime (18252001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59888 + ... + 60191.

It is an arithmetic number, because the mean of its divisors is an integer number (2251500).

Almost surely, 2^18252008 is an apocalyptic number.

It is an amenable number.

18252008 is a deficient number, since it is larger than the sum of its proper divisors (17771992).

18252008 is a wasteful number, since it uses less digits than its factorization.

18252008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120104 (or 120100 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 18252008 is about 4272.2368848181. The cubic root of 18252008 is about 263.2915271275.

Adding to 18252008 its reverse (80025281), we get a palindrome (98277289).

The spelling of 18252008 in words is "eighteen million, two hundred fifty-two thousand, eight".