1380831285 has 8 divisors (see below), whose sum is σ = 2209330080. Its totient is φ = 736443344.

The previous prime is 1380831269. The next prime is 1380831301. The reversal of 1380831285 is 5821380831.

It is an interprime number because it is at equal distance from previous prime (1380831269) and next prime (1380831301).

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

It is a cyclic number.

It is not a de Polignac number, because 1380831285 - 2⁴ = 1380831269 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46027695 + ... + 46027724.

It is an arithmetic number, because the mean of its divisors is an integer number (276166260).

Almost surely, 2^1380831285 is an apocalyptic number.

1380831285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1380831285 is a deficient number, since it is larger than the sum of its proper divisors (828498795).

1380831285 is an equidigital number, since it uses as much as digits as its factorization.

1380831285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92055427.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1380831285 is about 37159.5382775405. The cubic root of 1380831285 is about 1113.5597873129.

The spelling of 1380831285 in words is "one billion, three hundred eighty million, eight hundred thirty-one thousand, two hundred eighty-five".