242381288 has 8 divisors (see below), whose sum is σ = 454464930. Its totient is φ = 121190640.

The previous prime is 242381287. The next prime is 242381311. The reversal of 242381288 is 882183242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 156300004 + 86081284 = 12502^2 + 9278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (242381287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15148823 + ... + 15148838.

Almost surely, 2^242381288 is an apocalyptic number.

It is an amenable number.

242381288 is a deficient number, since it is larger than the sum of its proper divisors (212083642).

242381288 is a wasteful number, since it uses less digits than its factorization.

242381288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30297667 (or 30297663 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 242381288 is about 15568.5994231980. The cubic root of 242381288 is about 623.4950783390.

The spelling of 242381288 in words is "two hundred forty-two million, three hundred eighty-one thousand, two hundred eighty-eight".