242636057 has 4 divisors (see below), whose sum is σ = 248278800. Its totient is φ = 236993316.

The previous prime is 242636041. The next prime is 242636063. The reversal of 242636057 is 750636242.

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 242636057 - 2⁴ = 242636041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242636357) 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, 2821307 + ... + 2821392.

It is an arithmetic number, because the mean of its divisors is an integer number (62069700).

Almost surely, 2^242636057 is an apocalyptic number.

It is an amenable number.

242636057 is a deficient number, since it is larger than the sum of its proper divisors (5642743).

242636057 is an equidigital number, since it uses as much as digits as its factorization.

242636057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642742.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 242636057 is about 15576.7794168114. The cubic root of 242636057 is about 623.7134554756.

It can be divided in two parts, 2426 and 36057, that added together give a palindrome (38483).

The spelling of 242636057 in words is "two hundred forty-two million, six hundred thirty-six thousand, fifty-seven".