242000005 has 16 divisors (see below), whose sum is σ = 318044160. Its totient is φ = 175675968.

The previous prime is 241999991. The next prime is 242000023. The reversal of 242000005 is 500000242.

It is a happy number.

It is not a de Polignac number, because 242000005 - 2¹⁷ = 241868933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27717 + ... + 35386.

It is an arithmetic number, because the mean of its divisors is an integer number (19877760).

Almost surely, 2^242000005 is an apocalyptic number.

It is an amenable number.

242000005 is a deficient number, since it is larger than the sum of its proper divisors (76044155).

242000005 is a wasteful number, since it uses less digits than its factorization.

242000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63180.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 242000005 is about 15556.3493468101. The cubic root of 242000005 is about 623.1679727288.

Adding to 242000005 its reverse (500000242), we get a palindrome (742000247).

It can be divided in two parts, 24200000 and 5, that multiplied together give a square (121000000 = 11000²).

The spelling of 242000005 in words is "two hundred forty-two million, five", and thus it is an aban number.