242176891 has 8 divisors (see below), whose sum is σ = 266809968. Its totient is φ = 217980000.

The previous prime is 242176861. The next prime is 242176901. The reversal of 242176891 is 198671242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242176891 - 2⁵ = 242176859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242176801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107880 + ... + 110101.

It is an arithmetic number, because the mean of its divisors is an integer number (33351246).

Almost surely, 2^242176891 is an apocalyptic number.

242176891 is a deficient number, since it is larger than the sum of its proper divisors (24633077).

242176891 is a wasteful number, since it uses less digits than its factorization.

242176891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218093.

The product of its digits is 48384, while the sum is 40.

The square root of 242176891 is about 15562.0336395986. The cubic root of 242176891 is about 623.3197672767.

The spelling of 242176891 in words is "two hundred forty-two million, one hundred seventy-six thousand, eight hundred ninety-one".