242091812 has 6 divisors (see below), whose sum is σ = 423660678. Its totient is φ = 121045904.

The previous prime is 242091793. The next prime is 242091823. The reversal of 242091812 is 218190242.

It can be written as a sum of positive squares in only one way, i.e., 240064036 + 2027776 = 15494^2 + 1424^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30261473 + ... + 30261480.

It is an arithmetic number, because the mean of its divisors is an integer number (70610113).

Almost surely, 2^242091812 is an apocalyptic number.

It is an amenable number.

242091812 is a deficient number, since it is larger than the sum of its proper divisors (181568866).

242091812 is a wasteful number, since it uses less digits than its factorization.

242091812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60522957 (or 60522955 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 242091812 is about 15559.2998557133. The cubic root of 242091812 is about 623.2467660452.

The spelling of 242091812 in words is "two hundred forty-two million, ninety-one thousand, eight hundred twelve".