1001944442 has 16 divisors (see below), whose sum is σ = 1597687200. Its totient is φ = 469904400.

The previous prime is 1001944417. The next prime is 1001944457. The reversal of 1001944442 is 2444491001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126692 + ... + 134367.

It is an arithmetic number, because the mean of its divisors is an integer number (99855450).

Almost surely, 2^1001944442 is an apocalyptic number.

1001944442 is a deficient number, since it is larger than the sum of its proper divisors (595742758).

1001944442 is a wasteful number, since it uses less digits than its factorization.

1001944442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261181.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1001944442 is about 31653.5059985462. The cubic root of 1001944442 is about 1000.6477276916.

The spelling of 1001944442 in words is "one billion, one million, nine hundred forty-four thousand, four hundred forty-two".