10018869 has 16 divisors (see below), whose sum is σ = 15931392. Its totient is φ = 5475888.

The previous prime is 10018867. The next prime is 10018873. The reversal of 10018869 is 96881001.

It is not a de Polignac number, because 10018869 - 2¹ = 10018867 is a prime.

It is a super-2 number, since 2×10018869² = 200755472078322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10018861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9889 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (995712).

Almost surely, 2^10018869 is an apocalyptic number.

It is an amenable number.

10018869 is a deficient number, since it is larger than the sum of its proper divisors (5912523).

10018869 is a wasteful number, since it uses less digits than its factorization.

10018869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20776.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 10018869 is about 3165.2597049847. The cubic root of 10018869 is about 215.5788906237.

It can be divided in two parts, 1001 and 8869, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 10018869 in words is "ten million, eighteen thousand, eight hundred sixty-nine".