1380322540 has 24 divisors (see below), whose sum is σ = 2904461280. Its totient is φ = 551027328.

The previous prime is 1380322519. The next prime is 1380322547. The reversal of 1380322540 is 452230831.

It is a junction number, because it is equal to n+sod(n) for n = 1380322499 and 1380322508.

It is not an unprimeable number, because it can be changed into a prime (1380322547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58545 + ... + 78664.

It is an arithmetic number, because the mean of its divisors is an integer number (121019220).

Almost surely, 2^1380322540 is an apocalyptic number.

1380322540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380322540 is an abundant number, since it is smaller than the sum of its proper divisors (1524138740).

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

1380322540 is a wasteful number, since it uses less digits than its factorization.

1380322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137721 (or 137719 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1380322540 is about 37152.6922308465. The cubic root of 1380322540 is about 1113.4230128039.

The spelling of 1380322540 in words is "one billion, three hundred eighty million, three hundred twenty-two thousand, five hundred forty".