1049994881 has 4 divisors (see below), whose sum is σ = 1130763732. Its totient is φ = 969226032.

The previous prime is 1049994877. The next prime is 1049994901. The reversal of 1049994881 is 1884999401.

1049994881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 196420225 + 853574656 = 14015^2 + 29216^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049994881 - 2² = 1049994877 is a prime.

It is a super-2 number, since 2×1049994881² = 2204978500252408322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049994181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40384406 + ... + 40384431.

It is an arithmetic number, because the mean of its divisors is an integer number (282690933).

Almost surely, 2^1049994881 is an apocalyptic number.

It is an amenable number.

1049994881 is a deficient number, since it is larger than the sum of its proper divisors (80768851).

1049994881 is an equidigital number, since it uses as much as digits as its factorization.

1049994881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80768850.

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 1049994881 is about 32403.6245040582. The cubic root of 1049994881 is about 1016.3947050874.

The spelling of 1049994881 in words is "one billion, forty-nine million, nine hundred ninety-four thousand, eight hundred eighty-one".