1044554013 has 24 divisors (see below), whose sum is σ = 1589558880. Its totient is φ = 659158560.

The previous prime is 1044553999. The next prime is 1044554029. The reversal of 1044554013 is 3104554401.

It is a happy number.

1044554013 is a `hidden beast` number, since 104 + 4 + 5 + 540 + 13 = 666.

It is not a de Polignac number, because 1044554013 - 2⁶ = 1044553949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044556013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307995 + ... + 311367.

It is an arithmetic number, because the mean of its divisors is an integer number (66231620).

Almost surely, 2^1044554013 is an apocalyptic number.

It is an amenable number.

1044554013 is a deficient number, since it is larger than the sum of its proper divisors (545004867).

1044554013 is a wasteful number, since it uses less digits than its factorization.

1044554013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209 (or 5206 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1044554013 is about 32319.5608416946. The cubic root of 1044554013 is about 1014.6360778051.

The spelling of 1044554013 in words is "one billion, forty-four million, five hundred fifty-four thousand, thirteen".