242999005 has 8 divisors (see below), whose sum is σ = 298711224. Its totient is φ = 189657600.

The previous prime is 242998997. The next prime is 242999027. The reversal of 242999005 is 500999242.

It can be written as a sum of positive squares in 4 ways, for example, as 8357881 + 234641124 = 2891^2 + 15318^2 .

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

It is not a de Polignac number, because 242999005 - 2³ = 242998997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592476 + ... + 592885.

It is an arithmetic number, because the mean of its divisors is an integer number (37338903).

Almost surely, 2^242999005 is an apocalyptic number.

It is an amenable number.

242999005 is a deficient number, since it is larger than the sum of its proper divisors (55712219).

242999005 is a wasteful number, since it uses less digits than its factorization.

242999005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185407.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 242999005 is about 15588.4253534473. The cubic root of 242999005 is about 624.0242951928.

The spelling of 242999005 in words is "two hundred forty-two million, nine hundred ninety-nine thousand, five".