1045444001 has 8 divisors (see below), whose sum is σ = 1246740864. Its totient is φ = 857134080.

The previous prime is 1045443977. The next prime is 1045444009. The reversal of 1045444001 is 1004445401.

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 1045444001 - 2⁶ = 1045443937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045444009) 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, 3246560 + ... + 3246881.

It is an arithmetic number, because the mean of its divisors is an integer number (155842608).

Almost surely, 2^1045444001 is an apocalyptic number.

It is an amenable number.

1045444001 is a deficient number, since it is larger than the sum of its proper divisors (201296863).

1045444001 is an equidigital number, since it uses as much as digits as its factorization.

1045444001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493471.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1045444001 is about 32333.3264759443. The cubic root of 1045444001 is about 1014.9241617081.

Adding to 1045444001 its reverse (1004445401), we get a palindrome (2049889402).

The spelling of 1045444001 in words is "one billion, forty-five million, four hundred forty-four thousand, one".