242404191 has 16 divisors (see below), whose sum is σ = 364480000. Its totient is φ = 159189624.

The previous prime is 242404181. The next prime is 242404193. The reversal of 242404191 is 191404242.

It is a happy number.

242404191 is a `hidden beast` number, since 2 + 4 + 240 + 419 + 1 = 666.

It is not a de Polignac number, because 242404191 - 2¹⁹ = 241879903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242404193) 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, 65191 + ... + 68808.

It is an arithmetic number, because the mean of its divisors is an integer number (22780000).

Almost surely, 2^242404191 is an apocalyptic number.

242404191 is a deficient number, since it is larger than the sum of its proper divisors (122075809).

242404191 is a wasteful number, since it uses less digits than its factorization.

242404191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134075 (or 134069 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 242404191 is about 15569.3349568952. The cubic root of 242404191 is about 623.5147160734.

The spelling of 242404191 in words is "two hundred forty-two million, four hundred four thousand, one hundred ninety-one".