1375120320 has 672 divisors, whose sum is σ = 5604028416. Its totient is φ = 283852800.

The previous prime is 1375120309. The next prime is 1375120333. The reversal of 1375120320 is 230215731.

1375120320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33539500 + ... + 33539540.

It is an arithmetic number, because the mean of its divisors is an integer number (8339328).

Almost surely, 2^1375120320 is an apocalyptic number.

1375120320 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 1375120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802014208).

1375120320 is an abundant number, since it is smaller than the sum of its proper divisors (4228908096).

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

1375120320 is a wasteful number, since it uses less digits than its factorization.

1375120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1375120320 is about 37082.6147945368. The cubic root of 1375120320 is about 1112.0224794034.

The spelling of 1375120320 in words is "one billion, three hundred seventy-five million, one hundred twenty thousand, three hundred twenty".