1442973479 has 2 divisors, whose sum is σ = 1442973480. Its totient is φ = 1442973478.

The previous prime is 1442973457. The next prime is 1442973491. The reversal of 1442973479 is 9743792441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442973479 is a prime.

It is a super-2 number, since 2×1442973479² = 4164344922194726882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442979479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721486739 + 721486740.

It is an arithmetic number, because the mean of its divisors is an integer number (721486740).

Almost surely, 2^1442973479 is an apocalyptic number.

1442973479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442973479 is an equidigital number, since it uses as much as digits as its factorization.

1442973479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 1442973479 is about 37986.4907434209. The cubic root of 1442973479 is about 1130.0199644057.

The spelling of 1442973479 in words is "one billion, four hundred forty-two million, nine hundred seventy-three thousand, four hundred seventy-nine".