1380288356 has 6 divisors (see below), whose sum is σ = 2415504630. Its totient is φ = 690144176.

The previous prime is 1380288353. The next prime is 1380288359. The reversal of 1380288356 is 6538820831.

It is an interprime number because it is at equal distance from previous prime (1380288353) and next prime (1380288359).

It can be written as a sum of positive squares in only one way, i.e., 833476900 + 546811456 = 28870^2 + 23384^2 .

It is not an unprimeable number, because it can be changed into a prime (1380288353) 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 as a sum of consecutive naturals, namely, 172536041 + ... + 172536048.

It is an arithmetic number, because the mean of its divisors is an integer number (402584105).

Almost surely, 2^1380288356 is an apocalyptic number.

It is an amenable number.

1380288356 is a deficient number, since it is larger than the sum of its proper divisors (1035216274).

1380288356 is a wasteful number, since it uses less digits than its factorization.

1380288356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345072093 (or 345072091 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1380288356 is about 37152.2321805837. The cubic root of 1380288356 is about 1113.4138213371.

The spelling of 1380288356 in words is "one billion, three hundred eighty million, two hundred eighty-eight thousand, three hundred fifty-six".