1380375 has 32 divisors (see below), whose sum is σ = 2558400. Its totient is φ = 734400.

The previous prime is 1380341. The next prime is 1380377. The reversal of 1380375 is 5730831.

It is not a de Polignac number, because 1380375 - 2¹³ = 1372183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3171 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (79950).

2^1380375 is an apocalyptic number.

1380375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1380375 is a deficient number, since it is larger than the sum of its proper divisors (1178025).

1380375 is an equidigital number, since it uses as much as digits as its factorization.

1380375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1380375 is about 1174.8936122050. The cubic root of 1380375 is about 111.3437118065.

The spelling of 1380375 in words is "one million, three hundred eighty thousand, three hundred seventy-five".