18869043 has 16 divisors (see below), whose sum is σ = 25883136. Its totient is φ = 12221280.

The previous prime is 18869041. The next prime is 18869047. The reversal of 18869043 is 34096881.

It is not a de Polignac number, because 18869043 - 2¹ = 18869041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18868992 and 18869010.

It is not an unprimeable number, because it can be changed into a prime (18869041) 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, 22573 + ... + 23393.

It is an arithmetic number, because the mean of its divisors is an integer number (1617696).

Almost surely, 2^18869043 is an apocalyptic number.

18869043 is a deficient number, since it is larger than the sum of its proper divisors (7014093).

18869043 is a wasteful number, since it uses less digits than its factorization.

18869043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18869043 is about 4343.8511714837. The cubic root of 18869043 is about 266.2256880091.

The spelling of 18869043 in words is "eighteen million, eight hundred sixty-nine thousand, forty-three".