1348437644 has 12 divisors (see below), whose sum is σ = 2360193024. Its totient is φ = 674096784.

The previous prime is 1348437611. The next prime is 1348437689. The reversal of 1348437644 is 4467348431.

It is a junction number, because it is equal to n+sod(n) for n = 1348437595 and 1348437604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2867 + ... + 52010.

It is an arithmetic number, because the mean of its divisors is an integer number (196682752).

Almost surely, 2^1348437644 is an apocalyptic number.

It is an amenable number.

1348437644 is a deficient number, since it is larger than the sum of its proper divisors (1011755380).

1348437644 is a wasteful number, since it uses less digits than its factorization.

1348437644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61024 (or 61022 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The square root of 1348437644 is about 36721.0790146477. The cubic root of 1348437644 is about 1104.7829317751.

The spelling of 1348437644 in words is "one billion, three hundred forty-eight million, four hundred thirty-seven thousand, six hundred forty-four".