104242489 has 16 divisors (see below), whose sum is σ = 114429952. Its totient is φ = 94385088.

The previous prime is 104242483. The next prime is 104242499. The reversal of 104242489 is 984242401.

It is a cyclic number.

It is not a de Polignac number, because 104242489 - 2²³ = 95853881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104242483) 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, 169747 + ... + 170359.

It is an arithmetic number, because the mean of its divisors is an integer number (7151872).

Almost surely, 2^104242489 is an apocalyptic number.

It is an amenable number.

104242489 is a deficient number, since it is larger than the sum of its proper divisors (10187463).

104242489 is a wasteful number, since it uses less digits than its factorization.

104242489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 104242489 is about 10209.9211064533. The cubic root of 104242489 is about 470.6321492282.

The spelling of 104242489 in words is "one hundred four million, two hundred forty-two thousand, four hundred eighty-nine".