1442681479 has 2 divisors, whose sum is σ = 1442681480. Its totient is φ = 1442681478.

The previous prime is 1442681431. The next prime is 1442681491. The reversal of 1442681479 is 9741862441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442681479 - 2⁷ = 1442681351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442685479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721340739 + 721340740.

It is an arithmetic number, because the mean of its divisors is an integer number (721340740).

Almost surely, 2^1442681479 is an apocalyptic number.

1442681479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442681479 is an equidigital number, since it uses as much as digits as its factorization.

1442681479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 1442681479 is about 37982.6470773168. The cubic root of 1442681479 is about 1129.9437356798.

The spelling of 1442681479 in words is "one billion, four hundred forty-two million, six hundred eighty-one thousand, four hundred seventy-nine".