1041644013 has 4 divisors (see below), whose sum is σ = 1388858688. Its totient is φ = 694429340.

The previous prime is 1041643957. The next prime is 1041644027. The reversal of 1041644013 is 3104461401.

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 a cyclic number.

It is not a de Polignac number, because 1041644013 - 2⁶ = 1041643949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041624013) 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, 173607333 + ... + 173607338.

It is an arithmetic number, because the mean of its divisors is an integer number (347214672).

Almost surely, 2^1041644013 is an apocalyptic number.

It is an amenable number.

1041644013 is a deficient number, since it is larger than the sum of its proper divisors (347214675).

1041644013 is an equidigital number, since it uses as much as digits as its factorization.

1041644013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347214674.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1041644013 is about 32274.5102673921. The cubic root of 1041644013 is about 1013.6929840529.

The spelling of 1041644013 in words is "one billion, forty-one million, six hundred forty-four thousand, thirteen".