302142223444 has 12 divisors (see below), whose sum is σ = 537416906068. Its totient is φ = 148594536000.

The previous prime is 302142223441. The next prime is 302142223483. The reversal of 302142223444 is 444322241203.

It can be written as a sum of positive squares in 2 ways, for example, as 54108342544 + 248033880900 = 232612^2 + 498030^2 .

It is a super-2 number, since 2×302142223444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302142223441) 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, 619143657 + ... + 619144144.

Almost surely, 2^302142223444 is an apocalyptic number.

It is an amenable number.

302142223444 is a deficient number, since it is larger than the sum of its proper divisors (235274682624).

302142223444 is a wasteful number, since it uses less digits than its factorization.

302142223444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238287866 (or 1238287864 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 302142223444 its reverse (444322241203), we get a palindrome (746464464647).

The spelling of 302142223444 in words is "three hundred two billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred forty-four".