1994441079 has 8 divisors (see below), whose sum is σ = 2745037312. Its totient is φ = 1286736120.

The previous prime is 1994441063. The next prime is 1994441101. The reversal of 1994441079 is 9701444991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1994441079 - 2⁴ = 1994441063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994431079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10722709 + ... + 10722894.

It is an arithmetic number, because the mean of its divisors is an integer number (343129664).

Almost surely, 2^1994441079 is an apocalyptic number.

1994441079 is a deficient number, since it is larger than the sum of its proper divisors (750596233).

1994441079 is a wasteful number, since it uses less digits than its factorization.

1994441079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21445637.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1994441079 is about 44659.1656773836. The cubic root of 1994441079 is about 1258.7526664697.

The spelling of 1994441079 in words is "one billion, nine hundred ninety-four million, four hundred forty-one thousand, seventy-nine".