242000989 has 4 divisors (see below), whose sum is σ = 242033920. Its totient is φ = 241968060.

The previous prime is 242000981. The next prime is 242001013. The reversal of 242000989 is 989000242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242000989 - 2³ = 242000981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242000981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (60508480).

Almost surely, 2^242000989 is an apocalyptic number.

It is an amenable number.

242000989 is a deficient number, since it is larger than the sum of its proper divisors (32931).

242000989 is a wasteful number, since it uses less digits than its factorization.

242000989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32930.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 242000989 is about 15556.3809737355. The cubic root of 242000989 is about 623.1688173520.

The spelling of 242000989 in words is "two hundred forty-two million, nine hundred eighty-nine", and thus it is an aban number.