1375338840 has 128 divisors (see below), whose sum is σ = 4266682560. Its totient is φ = 354392064.

The previous prime is 1375338827. The next prime is 1375338893. The reversal of 1375338840 is 488335731.

It is a junction number, because it is equal to n+sod(n) for n = 1375338792 and 1375338801.

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 31 ways as a sum of consecutive naturals, for example, 696094 + ... + 698066.

Almost surely, 2^1375338840 is an apocalyptic number.

1375338840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375338840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133341280).

1375338840 is an abundant number, since it is smaller than the sum of its proper divisors (2891343720).

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

1375338840 is a wasteful number, since it uses less digits than its factorization.

1375338840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1375338840 is about 37085.5610716624. The cubic root of 1375338840 is about 1112.0813800145.

The spelling of 1375338840 in words is "one billion, three hundred seventy-five million, three hundred thirty-eight thousand, eight hundred forty".