1442426447 has 32 divisors (see below), whose sum is σ = 1878059520. Its totient is φ = 1074890880.

The previous prime is 1442426431. The next prime is 1442426473. The reversal of 1442426447 is 7446242441.

It is not a de Polignac number, because 1442426447 - 2⁴ = 1442426431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442426447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442423447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235913 + ... + 241949.

It is an arithmetic number, because the mean of its divisors is an integer number (58689360).

Almost surely, 2^1442426447 is an apocalyptic number.

1442426447 is a deficient number, since it is larger than the sum of its proper divisors (435633073).

1442426447 is a wasteful number, since it uses less digits than its factorization.

1442426447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191.

The product of its digits is 172032, while the sum is 38.

The square root of 1442426447 is about 37979.2897116310. The cubic root of 1442426447 is about 1129.8771493040.

Adding to 1442426447 its reverse (7446242441), we get a palindrome (8888668888).

The spelling of 1442426447 in words is "one billion, four hundred forty-two million, four hundred twenty-six thousand, four hundred forty-seven".