242221370 has 16 divisors (see below), whose sum is σ = 436550688. Its totient is φ = 96765840.

The previous prime is 242221361. The next prime is 242221379. The reversal of 242221370 is 73122242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242221361) and next prime (242221379).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242221379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6824 + ... + 23043.

It is an arithmetic number, because the mean of its divisors is an integer number (27284418).

Almost surely, 2^242221370 is an apocalyptic number.

242221370 is a deficient number, since it is larger than the sum of its proper divisors (194329318).

242221370 is a wasteful number, since it uses less digits than its factorization.

242221370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30685.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 242221370 is about 15563.4626609890. The cubic root of 242221370 is about 623.3579252565.

The spelling of 242221370 in words is "two hundred forty-two million, two hundred twenty-one thousand, three hundred seventy".