242378515 has 8 divisors (see below), whose sum is σ = 290960928. Its totient is φ = 193831680.

The previous prime is 242378489. The next prime is 242378519. The reversal of 242378515 is 515873242.

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

It is not a de Polignac number, because 242378515 - 2²³ = 233989907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242378519) 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, 9594 + ... + 24016.

It is an arithmetic number, because the mean of its divisors is an integer number (36370116).

Almost surely, 2^242378515 is an apocalyptic number.

242378515 is a deficient number, since it is larger than the sum of its proper divisors (48582413).

242378515 is a wasteful number, since it uses less digits than its factorization.

242378515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17789.

The product of its digits is 67200, while the sum is 37.

The square root of 242378515 is about 15568.5103654781. The cubic root of 242378515 is about 623.4927005999.

The spelling of 242378515 in words is "two hundred forty-two million, three hundred seventy-eight thousand, five hundred fifteen".