242246987 has 4 divisors (see below), whose sum is σ = 242536560. Its totient is φ = 241957416.

The previous prime is 242246951. The next prime is 242246999. The reversal of 242246987 is 789642242.

242246987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242246987 - 2²⁰ = 241198411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242246387) 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, 143528 + ... + 145205.

It is an arithmetic number, because the mean of its divisors is an integer number (60634140).

Almost surely, 2^242246987 is an apocalyptic number.

242246987 is a deficient number, since it is larger than the sum of its proper divisors (289573).

242246987 is an equidigital number, since it uses as much as digits as its factorization.

242246987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289572.

The product of its digits is 387072, while the sum is 44.

The square root of 242246987 is about 15564.2856244673. The cubic root of 242246987 is about 623.3798996417.

The spelling of 242246987 in words is "two hundred forty-two million, two hundred forty-six thousand, nine hundred eighty-seven".