242221004 has 24 divisors (see below), whose sum is σ = 445820928. Its totient is φ = 114927120.

The previous prime is 242220991. The next prime is 242221051. The reversal of 242221004 is 400122242.

It is a happy 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, 1319 + ... + 22049.

It is an arithmetic number, because the mean of its divisors is an integer number (18575872).

Almost surely, 2^242221004 is an apocalyptic number.

It is an amenable number.

242221004 is a deficient number, since it is larger than the sum of its proper divisors (203599924).

242221004 is a wasteful number, since it uses less digits than its factorization.

242221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20885 (or 20883 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 242221004 is about 15563.4509026758. The cubic root of 242221004 is about 623.3576112887.

Adding to 242221004 its reverse (400122242), we get a palindrome (642343246).

The spelling of 242221004 in words is "two hundred forty-two million, two hundred twenty-one thousand, four".