10018634 has 4 divisors (see below), whose sum is σ = 15027954. Its totient is φ = 5009316.

The previous prime is 10018633. The next prime is 10018651. The reversal of 10018634 is 43681001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9765625 + 253009 = 3125^2 + 503^2 .

It is not an unprimeable number, because it can be changed into a prime (10018633) by changing a digit.

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 as a sum of consecutive naturals, namely, 2504657 + ... + 2504660.

Almost surely, 2^10018634 is an apocalyptic number.

10018634 is a deficient number, since it is larger than the sum of its proper divisors (5009320).

10018634 is an equidigital number, since it uses as much as digits as its factorization.

10018634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009319.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 10018634 is about 3165.2225830106. Note that the first 3 decimals coincide. The cubic root of 10018634 is about 215.5772050897.

Adding to 10018634 its reverse (43681001), we get a palindrome (53699635).

The spelling of 10018634 in words is "ten million, eighteen thousand, six hundred thirty-four".