242272761 has 4 divisors (see below), whose sum is σ = 323030352. Its totient is φ = 161515172.

The previous prime is 242272759. The next prime is 242272769. The reversal of 242272761 is 167272242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242272761 - 2¹ = 242272759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242272769) 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, 40378791 + ... + 40378796.

It is an arithmetic number, because the mean of its divisors is an integer number (80757588).

Almost surely, 2^242272761 is an apocalyptic number.

It is an amenable number.

242272761 is a deficient number, since it is larger than the sum of its proper divisors (80757591).

242272761 is an equidigital number, since it uses as much as digits as its factorization.

242272761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80757590.

The product of its digits is 18816, while the sum is 33.

The square root of 242272761 is about 15565.1135877641. The cubic root of 242272761 is about 623.4020071389.

The spelling of 242272761 in words is "two hundred forty-two million, two hundred seventy-two thousand, seven hundred sixty-one".