302142222 has 24 divisors (see below), whose sum is σ = 672335976. Its totient is φ = 97991856.

The previous prime is 302142187. The next prime is 302142227. The reversal of 302142222 is 222241203.

302142222 is a `hidden beast` number, since 302 + 142 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 302142195 and 302142204.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 226168 + ... + 227499.

It is an arithmetic number, because the mean of its divisors is an integer number (28013999).

Almost surely, 2^302142222 is an apocalyptic number.

302142222 is an abundant number, since it is smaller than the sum of its proper divisors (370193754).

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

302142222 is a wasteful number, since it uses less digits than its factorization.

302142222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453712 (or 453709 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 302142222 is about 17382.2386935630. The cubic root of 302142222 is about 671.0225878829.

Adding to 302142222 its reverse (222241203), we get a palindrome (524383425).

The spelling of 302142222 in words is "three hundred two million, one hundred forty-two thousand, two hundred twenty-two".