242517320 has 32 divisors (see below), whose sum is σ = 548424000. Its totient is φ = 96516288.

The previous prime is 242517293. The next prime is 242517329. The reversal of 242517320 is 23715242.

It is a self number, because there is not a number n which added to its sum of digits gives 242517320.

It is not an unprimeable number, because it can be changed into a prime (242517329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7274 + ... + 23193.

It is an arithmetic number, because the mean of its divisors is an integer number (17138250).

Almost surely, 2^242517320 is an apocalyptic number.

242517320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242517320 is an abundant number, since it is smaller than the sum of its proper divisors (305906680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242517320 is a wasteful number, since it uses less digits than its factorization.

242517320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30677 (or 30673 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 242517320 is about 15572.9676041530. The cubic root of 242517320 is about 623.6116982057.

The spelling of 242517320 in words is "two hundred forty-two million, five hundred seventeen thousand, three hundred twenty".