20000618 has 8 divisors (see below), whose sum is σ = 32728320. Its totient is φ = 9091180.

The previous prime is 20000599. The next prime is 20000621. The reversal of 20000618 is 81600002.

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 = 20000596 and 20000605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454538 + ... + 454581.

It is an arithmetic number, because the mean of its divisors is an integer number (4091040).

Almost surely, 2^20000618 is an apocalyptic number.

20000618 is a deficient number, since it is larger than the sum of its proper divisors (12727702).

20000618 is a wasteful number, since it uses less digits than its factorization.

20000618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909132.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 20000618 is about 4472.2050489663. The cubic root of 20000618 is about 271.4445574808. Note that the first 3 decimals are identical.

The spelling of 20000618 in words is "twenty million, six hundred eighteen", and thus it is an aban number.