306022143242 has 32 divisors (see below), whose sum is σ = 487167065280. Its totient is φ = 143955342720.

The previous prime is 306022143241. The next prime is 306022143289. The reversal of 306022143242 is 242341220603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (306022143241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83984 + ... + 786827.

It is an arithmetic number, because the mean of its divisors is an integer number (15223970790).

Almost surely, 2^306022143242 is an apocalyptic number.

306022143242 is a deficient number, since it is larger than the sum of its proper divisors (181144922038).

306022143242 is a wasteful number, since it uses less digits than its factorization.

306022143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870998.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 306022143242 its reverse (242341220603), we get a palindrome (548363363845).

The spelling of 306022143242 in words is "three hundred six billion, twenty-two million, one hundred forty-three thousand, two hundred forty-two".