242121662 has 8 divisors (see below), whose sum is σ = 363626256. Its totient is φ = 120912912.

The previous prime is 242121661. The next prime is 242121689. The reversal of 242121662 is 266121242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242121661) 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, 71903 + ... + 75194.

It is an arithmetic number, because the mean of its divisors is an integer number (45453282).

Almost surely, 2^242121662 is an apocalyptic number.

242121662 is a deficient number, since it is larger than the sum of its proper divisors (121504594).

242121662 is a wasteful number, since it uses less digits than its factorization.

242121662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147922.

The product of its digits is 2304, while the sum is 26.

The square root of 242121662 is about 15560.2590595401. The cubic root of 242121662 is about 623.2723805028.

The spelling of 242121662 in words is "two hundred forty-two million, one hundred twenty-one thousand, six hundred sixty-two".