1044667749 has 4 divisors (see below), whose sum is σ = 1392890336. Its totient is φ = 696445164.

The previous prime is 1044667733. The next prime is 1044667759. The reversal of 1044667749 is 9477664401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1044667749 - 2⁴ = 1044667733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044667698 and 1044667707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044667759) 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, 174111289 + ... + 174111294.

It is an arithmetic number, because the mean of its divisors is an integer number (348222584).

Almost surely, 2^1044667749 is an apocalyptic number.

It is an amenable number.

1044667749 is a deficient number, since it is larger than the sum of its proper divisors (348222587).

1044667749 is an equidigital number, since it uses as much as digits as its factorization.

1044667749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348222586.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 1044667749 is about 32321.3203474116. The cubic root of 1044667749 is about 1014.6729025997.

The spelling of 1044667749 in words is "one billion, forty-four million, six hundred sixty-seven thousand, seven hundred forty-nine".