1043644794 has 16 divisors (see below), whose sum is σ = 2110743360. Its totient is φ = 343972640.

The previous prime is 1043644793. The next prime is 1043644813. The reversal of 1043644794 is 4974463401.

It is not an unprimeable number, because it can be changed into a prime (1043644793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976662 + ... + 977729.

It is an arithmetic number, because the mean of its divisors is an integer number (131921460).

Almost surely, 2^1043644794 is an apocalyptic number.

1043644794 is an abundant number, since it is smaller than the sum of its proper divisors (1067098566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1043644794 is a wasteful number, since it uses less digits than its factorization.

1043644794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954485.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 1043644794 is about 32305.4917003286. The cubic root of 1043644794 is about 1014.3415999114.

The spelling of 1043644794 in words is "one billion, forty-three million, six hundred forty-four thousand, seven hundred ninety-four".