242213706 has 32 divisors (see below), whose sum is σ = 615146880. Its totient is φ = 69203808.

The previous prime is 242213693. The next prime is 242213707. The reversal of 242213706 is 607312242.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 242213706.

It is not an unprimeable number, because it can be changed into a prime (242213707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320011 + ... + 320766.

It is an arithmetic number, because the mean of its divisors is an integer number (19223340).

Almost surely, 2^242213706 is an apocalyptic number.

242213706 is an abundant number, since it is smaller than the sum of its proper divisors (372933174).

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

242213706 is a wasteful number, since it uses less digits than its factorization.

242213706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640795 (or 640789 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 242213706 is about 15563.2164413401. The cubic root of 242213706 is about 623.3513507395.

Adding to 242213706 its reverse (607312242), we get a palindrome (849525948).

The spelling of 242213706 in words is "two hundred forty-two million, two hundred thirteen thousand, seven hundred six".