1442210069 has 2 divisors, whose sum is σ = 1442210070. Its totient is φ = 1442210068.

The previous prime is 1442210039. The next prime is 1442210089. The reversal of 1442210069 is 9600122441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791296900 + 650913169 = 28130^2 + 25513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442210069 is a prime.

It is a super-2 number, since 2×1442210069² = 4159939766249969522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442210039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721105034 + 721105035.

It is an arithmetic number, because the mean of its divisors is an integer number (721105035).

Almost surely, 2^1442210069 is an apocalyptic number.

It is an amenable number.

1442210069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442210069 is an equidigital number, since it uses as much as digits as its factorization.

1442210069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1442210069 is about 37976.4409733192. The cubic root of 1442210069 is about 1129.8206489572.

The spelling of 1442210069 in words is "one billion, four hundred forty-two million, two hundred ten thousand, sixty-nine".