1380405830 has 8 divisors (see below), whose sum is σ = 2484730512. Its totient is φ = 552162328.

The previous prime is 1380405811. The next prime is 1380405833. The reversal of 1380405830 is 385040831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380405833) 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 3 ways as a sum of consecutive naturals, for example, 69020282 + ... + 69020301.

It is an arithmetic number, because the mean of its divisors is an integer number (310591314).

Almost surely, 2^1380405830 is an apocalyptic number.

1380405830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380405830 is a deficient number, since it is larger than the sum of its proper divisors (1104324682).

1380405830 is a wasteful number, since it uses less digits than its factorization.

1380405830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138040590.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1380405830 is about 37153.8131286682. The cubic root of 1380405830 is about 1113.4454073614.

The spelling of 1380405830 in words is "one billion, three hundred eighty million, four hundred five thousand, eight hundred thirty".