242427641 has 4 divisors (see below), whose sum is σ = 246046032. Its totient is φ = 238809252.

The previous prime is 242427623. The next prime is 242427649. The reversal of 242427641 is 146724242.

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 a de Polignac number, because none of the positive numbers 2^k-242427641 is a prime.

It is a super-2 number, since 2×242427641² = 117542322241649762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242427598 and 242427607.

It is not an unprimeable number, because it can be changed into a prime (242427649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809095 + ... + 1809228.

It is an arithmetic number, because the mean of its divisors is an integer number (61511508).

Almost surely, 2^242427641 is an apocalyptic number.

It is an amenable number.

242427641 is a deficient number, since it is larger than the sum of its proper divisors (3618391).

242427641 is an equidigital number, since it uses as much as digits as its factorization.

242427641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618390.

The product of its digits is 21504, while the sum is 32.

The square root of 242427641 is about 15570.0880215881. The cubic root of 242427641 is about 623.5348215407.

The spelling of 242427641 in words is "two hundred forty-two million, four hundred twenty-seven thousand, six hundred forty-one".