242102782 has 4 divisors (see below), whose sum is σ = 363154176. Its totient is φ = 121051390.

The previous prime is 242102753. The next prime is 242102813. The reversal of 242102782 is 287201242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287201242 = 2 ⋅143600621.

It is a super-2 number, since 2×242102782² = 117227514104279048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242102782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60525694 + ... + 60525697.

It is an arithmetic number, because the mean of its divisors is an integer number (90788544).

Almost surely, 2^242102782 is an apocalyptic number.

242102782 is a deficient number, since it is larger than the sum of its proper divisors (121051394).

242102782 is a wasteful number, since it uses less digits than its factorization.

242102782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121051393.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 242102782 is about 15559.6523740089. The cubic root of 242102782 is about 623.2561797103.

The spelling of 242102782 in words is "two hundred forty-two million, one hundred two thousand, seven hundred eighty-two".