1044939491 has 8 divisors (see below), whose sum is σ = 1050598080. Its totient is φ = 1039296808.

The previous prime is 1044939487. The next prime is 1044939521. The reversal of 1044939491 is 1949394401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1044939491 - 2² = 1044939487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044939461) 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, 141800 + ... + 148986.

It is an arithmetic number, because the mean of its divisors is an integer number (131324760).

Almost surely, 2^1044939491 is an apocalyptic number.

1044939491 is a deficient number, since it is larger than the sum of its proper divisors (5658589).

1044939491 is an equidigital number, since it uses as much as digits as its factorization.

1044939491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1044939491 is about 32325.5238317958. The cubic root of 1044939491 is about 1014.7608748568.

The spelling of 1044939491 in words is "one billion, forty-four million, nine hundred thirty-nine thousand, four hundred ninety-one".