305142022 has 8 divisors (see below), whose sum is σ = 458422416. Its totient is φ = 152334552.

The previous prime is 305142007. The next prime is 305142029. The reversal of 305142022 is 220241503.

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

It is a super-2 number, since 2×305142022² = 186223307180496968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305142029) 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, 116613 + ... + 119200.

It is an arithmetic number, because the mean of its divisors is an integer number (57302802).

Almost surely, 2^305142022 is an apocalyptic number.

305142022 is a deficient number, since it is larger than the sum of its proper divisors (153280394).

305142022 is a wasteful number, since it uses less digits than its factorization.

305142022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236462.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 305142022 is about 17468.3148013768. The cubic root of 305142022 is about 673.2360138296.

Adding to 305142022 its reverse (220241503), we get a palindrome (525383525).

The spelling of 305142022 in words is "three hundred five million, one hundred forty-two thousand, twenty-two".