1380843600 has 60 divisors (see below), whose sum is σ = 4423306176. Its totient is φ = 368224640.

The previous prime is 1380843593. The next prime is 1380843631. The reversal of 1380843600 is 63480831.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

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, 574152 + ... + 576551.

Almost surely, 2^1380843600 is an apocalyptic number.

1380843600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380843600 is an abundant number, since it is smaller than the sum of its proper divisors (3042462576).

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

1380843600 is a wasteful number, since it uses less digits than its factorization.

1380843600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150724 (or 1150713 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1380843600 is about 37159.7039815981. The cubic root of 1380843600 is about 1113.5630977458.

The spelling of 1380843600 in words is "one billion, three hundred eighty million, eight hundred forty-three thousand, six hundred".