18877241 has 8 divisors (see below), whose sum is σ = 19989120. Its totient is φ = 17777232.

The previous prime is 18877223. The next prime is 18877247. The reversal of 18877241 is 14277881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18877241 - 2¹⁰ = 18876217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18877195 and 18877204.

It is not an unprimeable number, because it can be changed into a prime (18877247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 6158.

It is an arithmetic number, because the mean of its divisors is an integer number (2498640).

Almost surely, 2^18877241 is an apocalyptic number.

It is an amenable number.

18877241 is a deficient number, since it is larger than the sum of its proper divisors (1111879).

18877241 is a wasteful number, since it uses less digits than its factorization.

18877241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935.

The product of its digits is 25088, while the sum is 38.

The square root of 18877241 is about 4344.7947017092. The cubic root of 18877241 is about 266.2642379625.

The spelling of 18877241 in words is "eighteen million, eight hundred seventy-seven thousand, two hundred forty-one".