1380128295 has 64 divisors (see below), whose sum is σ = 2764016640. Its totient is φ = 572479488.

The previous prime is 1380128279. The next prime is 1380128311. The reversal of 1380128295 is 5928210831.

It is an interprime number because it is at equal distance from previous prime (1380128279) and next prime (1380128311).

It is not a de Polignac number, because 1380128295 - 2⁴ = 1380128279 is a prime.

It is a super-2 number, since 2×1380128295² = 3809508221319214050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 71967 + ... + 89103.

It is an arithmetic number, because the mean of its divisors is an integer number (43187760).

Almost surely, 2^1380128295 is an apocalyptic number.

1380128295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1380128295 is an abundant number, since it is smaller than the sum of its proper divisors (1383888345).

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

1380128295 is a wasteful number, since it uses less digits than its factorization.

1380128295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1380128295 is about 37150.0779945345. The cubic root of 1380128295 is about 1113.3707817751.

The spelling of 1380128295 in words is "one billion, three hundred eighty million, one hundred twenty-eight thousand, two hundred ninety-five".