242778883 has 4 divisors (see below), whose sum is σ = 244268488. Its totient is φ = 241289280.

The previous prime is 242778881. The next prime is 242778889. The reversal of 242778883 is 388877242.

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

It is a cyclic number.

It is not a de Polignac number, because 242778883 - 2¹ = 242778881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242778881) 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, 744558 + ... + 744883.

It is an arithmetic number, because the mean of its divisors is an integer number (61067122).

Almost surely, 2^242778883 is an apocalyptic number.

242778883 is a deficient number, since it is larger than the sum of its proper divisors (1489605).

242778883 is a wasteful number, since it uses less digits than its factorization.

242778883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489604.

The product of its digits is 1204224, while the sum is 49.

The square root of 242778883 is about 15581.3633228932. The cubic root of 242778883 is about 623.8358129762.

The spelling of 242778883 in words is "two hundred forty-two million, seven hundred seventy-eight thousand, eight hundred eighty-three".