302142442 has 8 divisors (see below), whose sum is σ = 517958496. Its totient is φ = 129489612.

The previous prime is 302142419. The next prime is 302142443. The reversal of 302142442 is 244241203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (302142443) 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, 10790788 + ... + 10790815.

It is an arithmetic number, because the mean of its divisors is an integer number (64744812).

Almost surely, 2^302142442 is an apocalyptic number.

302142442 is a deficient number, since it is larger than the sum of its proper divisors (215816054).

302142442 is a wasteful number, since it uses less digits than its factorization.

302142442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21581612.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 302142442 is about 17382.2450218607. The cubic root of 302142442 is about 671.0227507476.

Adding to 302142442 its reverse (244241203), we get a palindrome (546383645).

The spelling of 302142442 in words is "three hundred two million, one hundred forty-two thousand, four hundred forty-two".