242645043 has 4 divisors (see below), whose sum is σ = 323526728. Its totient is φ = 161763360.

The previous prime is 242645041. The next prime is 242645069. The reversal of 242645043 is 340546242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242645043 - 2¹ = 242645041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242645043.

It is not an unprimeable number, because it can be changed into a prime (242645041) 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, 40440838 + ... + 40440843.

It is an arithmetic number, because the mean of its divisors is an integer number (80881682).

Almost surely, 2^242645043 is an apocalyptic number.

242645043 is a deficient number, since it is larger than the sum of its proper divisors (80881685).

242645043 is an equidigital number, since it uses as much as digits as its factorization.

242645043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80881684.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 242645043 is about 15577.0678563072. The cubic root of 242645043 is about 623.7211551006.

The spelling of 242645043 in words is "two hundred forty-two million, six hundred forty-five thousand, forty-three".