10000018 has 24 divisors (see below), whose sum is σ = 17721072. Its totient is φ = 4218984.

The previous prime is 9999991. The next prime is 10000019. The reversal of 10000018 is 81000001.

10000018 is a modest number, since divided by 18 gives 10 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 9999959 and 10000013.

It is not an unprimeable number, because it can be changed into a prime (10000019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5805 + ... + 7327.

It is an arithmetic number, because the mean of its divisors is an integer number (738378).

Almost surely, 2^10000018 is an apocalyptic number.

10000018 is a deficient number, since it is larger than the sum of its proper divisors (7721054).

10000018 is a wasteful number, since it uses less digits than its factorization.

10000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 10000018 is about 3162.2805062170. The cubic root of 10000018 is about 215.4435982692.

Adding to 10000018 its reverse (81000001), we get a palindrome (91000019).

It can be divided in two parts, 1000001 and 8, that multiplied together give a palindrome (8000008).

The spelling of 10000018 in words is "ten million, eighteen", and thus it is an aban number and an uban number.