1442209471 has 2 divisors, whose sum is σ = 1442209472. Its totient is φ = 1442209470.

The previous prime is 1442209453. The next prime is 1442209477. The reversal of 1442209471 is 1749022441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442209471 - 2⁷ = 1442209343 is a prime.

It is a super-3 number, since 3×1442209471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442209477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721104735 + 721104736.

It is an arithmetic number, because the mean of its divisors is an integer number (721104736).

Almost surely, 2^1442209471 is an apocalyptic number.

1442209471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442209471 is an equidigital number, since it uses as much as digits as its factorization.

1442209471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1442209471 is about 37976.4331000161. The cubic root of 1442209471 is about 1129.8204928004.

The spelling of 1442209471 in words is "one billion, four hundred forty-two million, two hundred nine thousand, four hundred seventy-one".