1348843680 has 72 divisors (see below), whose sum is σ = 4602933972. Its totient is φ = 359691264.

The previous prime is 1348843633. The next prime is 1348843721. The reversal of 1348843680 is 863488431.

1348843680 is a `hidden beast` number, since 134 + 8 + 8 + 436 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1170460944 + 178382736 = 34212^2 + 13356^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466909 + ... + 469788.

Almost surely, 2^1348843680 is an apocalyptic number.

1348843680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1348843680 is an abundant number, since it is smaller than the sum of its proper divisors (3254090292).

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

1348843680 is a wasteful number, since it uses less digits than its factorization.

1348843680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936718 (or 936707 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 1348843680 is about 36726.6072486964. The cubic root of 1348843680 is about 1104.8938098783.

The spelling of 1348843680 in words is "one billion, three hundred forty-eight million, eight hundred forty-three thousand, six hundred eighty".