1442409943 has 16 divisors (see below), whose sum is σ = 1626089472. Its totient is φ = 1270332000.

The previous prime is 1442409937. The next prime is 1442409959. The reversal of 1442409943 is 3499042441.

It is not a de Polignac number, because 1442409943 - 2⁵ = 1442409911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442409896 and 1442409905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442409973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3408 + ... + 53818.

It is an arithmetic number, because the mean of its divisors is an integer number (101630592).

Almost surely, 2^1442409943 is an apocalyptic number.

1442409943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1442409943 is a deficient number, since it is larger than the sum of its proper divisors (183679529).

1442409943 is a wasteful number, since it uses less digits than its factorization.

1442409943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50526.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1442409943 is about 37979.0724346975. The cubic root of 1442409943 is about 1129.8728399997.

The spelling of 1442409943 in words is "one billion, four hundred forty-two million, four hundred nine thousand, nine hundred forty-three".