1348445844 has 18 divisors (see below), whose sum is σ = 3408571530. Its totient is φ = 449481936.

The previous prime is 1348445807. The next prime is 1348445873. The reversal of 1348445844 is 4485448431.

It can be written as a sum of positive squares in only one way, i.e., 800324100 + 548121744 = 28290^2 + 23412^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1348445844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18728379 + ... + 18728450.

It is an arithmetic number, because the mean of its divisors is an integer number (189365085).

Almost surely, 2^1348445844 is an apocalyptic number.

It is an amenable number.

1348445844 is an abundant number, since it is smaller than the sum of its proper divisors (2060125686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1348445844 is a wasteful number, since it uses less digits than its factorization.

1348445844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37456839 (or 37456834 counting only the distinct ones).

The product of its digits is 983040, while the sum is 45.

The square root of 1348445844 is about 36721.1906669705. The cubic root of 1348445844 is about 1104.7851712067.

The spelling of 1348445844 in words is "one billion, three hundred forty-eight million, four hundred forty-five thousand, eight hundred forty-four".