242192308 has 6 divisors (see below), whose sum is σ = 423836546. Its totient is φ = 121096152.

The previous prime is 242192303. The next prime is 242192317. The reversal of 242192308 is 803291242.

It can be written as a sum of positive squares in only one way, i.e., 229886244 + 12306064 = 15162^2 + 3508^2 .

It is a super-2 number, since 2×242192308² = 117314228108733728, 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 242192308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242192303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30274035 + ... + 30274042.

Almost surely, 2^242192308 is an apocalyptic number.

It is an amenable number.

242192308 is a deficient number, since it is larger than the sum of its proper divisors (181644238).

242192308 is a wasteful number, since it uses less digits than its factorization.

242192308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60548081 (or 60548079 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 242192308 is about 15562.5289718606. The cubic root of 242192308 is about 623.3329938579.

The spelling of 242192308 in words is "two hundred forty-two million, one hundred ninety-two thousand, three hundred eight".