242419887 has 6 divisors (see below), whose sum is σ = 350162072. Its totient is φ = 161613252.

The previous prime is 242419867. The next prime is 242419909. The reversal of 242419887 is 788914242.

It is not a de Polignac number, because 242419887 - 2¹⁰ = 242418863 is a prime.

It is a super-2 number, since 2×242419887² = 117534803226185538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242419817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13467763 + ... + 13467780.

Almost surely, 2^242419887 is an apocalyptic number.

242419887 is a deficient number, since it is larger than the sum of its proper divisors (107742185).

242419887 is a wasteful number, since it uses less digits than its factorization.

242419887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26935549 (or 26935546 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 242419887 is about 15569.8390165088. The cubic root of 242419887 is about 623.5281735906.

The spelling of 242419887 in words is "two hundred forty-two million, four hundred nineteen thousand, eight hundred eighty-seven".