1387380488 has 36 divisors (see below), whose sum is σ = 2819617335. Its totient is φ = 639697344.

The previous prime is 1387380481. The next prime is 1387380499. The reversal of 1387380488 is 8840837831.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 159719044 + 1227661444 = 12638^2 + 35038^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26338.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387380481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1369070 + ... + 1370082.

Almost surely, 2^1387380488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387380488

1387380488 is an abundant number, since it is smaller than the sum of its proper divisors (1432236847).

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

1387380488 is an equidigital number, since it uses as much as digits as its factorization.

1387380488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 50.

The square root of 1387380488 is about 37247.5568057826. The cubic root of 1387380488 is about 1115.3175278575.

Multiplying 1387380488 by its sum of digits (50), we get a square (69369024400 = 263380²).

The spelling of 1387380488 in words is "one billion, three hundred eighty-seven million, three hundred eighty thousand, four hundred eighty-eight".