302142224 has 20 divisors (see below), whose sum is σ = 619836444. Its totient is φ = 142184448.

The previous prime is 302142187. The next prime is 302142227. The reversal of 302142224 is 422241203.

302142224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159769600 + 142372624 = 12640^2 + 11932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 302142196 and 302142205.

It is not an unprimeable number, because it can be changed into a prime (302142227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555137 + ... + 555680.

Almost surely, 2^302142224 is an apocalyptic number.

302142224 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

302142224 is an abundant number, since it is smaller than the sum of its proper divisors (317694220).

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

302142224 is a wasteful number, since it uses less digits than its factorization.

302142224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110842 (or 1110836 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 302142224 is about 17382.2387510930. The cubic root of 302142224 is about 671.0225893635.

Adding to 302142224 its reverse (422241203), we get a palindrome (724383427).

The spelling of 302142224 in words is "three hundred two million, one hundred forty-two thousand, two hundred twenty-four".