242214575409 has 9 divisors (see below), whose sum is σ = 349867630489. Its totient is φ = 161475399300.

The previous prime is 242214575401. The next prime is 242214575441. The reversal of 242214575409 is 904575412242.

The square root of 242214575409 is 492153.

It is a perfect power (a square), and thus also a powerful number.

242214575409 is a `hidden beast` number, since 2 + 4 + 22 + 14 + 575 + 40 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 242214575409 - 2³ = 242214575401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242214575401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1394434 + ... + 1558484.

Almost surely, 2^242214575409 is an apocalyptic number.

242214575409 is the 492153-rd square number.

242214575409 is the 246077-th centered octagonal number.

It is an amenable number.

242214575409 is a deficient number, since it is larger than the sum of its proper divisors (107653055080).

242214575409 is an frugal number, since it uses more digits than its factorization.

242214575409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328108 (or 164054 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 242214575409 in words is "two hundred forty-two billion, two hundred fourteen million, five hundred seventy-five thousand, four hundred nine".