1380607888 has 40 divisors (see below), whose sum is σ = 2928741120. Its totient is φ = 625261440.

The previous prime is 1380607873. The next prime is 1380607889. The reversal of 1380607888 is 8887060831.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1380607889) 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 7 ways as a sum of consecutive naturals, for example, 34593 + ... + 62911.

It is an arithmetic number, because the mean of its divisors is an integer number (73218528).

Almost surely, 2^1380607888 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 1380607888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464370560).

1380607888 is an abundant number, since it is smaller than the sum of its proper divisors (1548133232).

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

1380607888 is a wasteful number, since it uses less digits than its factorization.

1380607888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28615 (or 28609 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 1380607888 is about 37156.5322386253. The cubic root of 1380607888 is about 1113.4997318629.

The spelling of 1380607888 in words is "one billion, three hundred eighty million, six hundred seven thousand, eight hundred eighty-eight".