1380250 has 16 divisors (see below), whose sum is σ = 2584296. Its totient is φ = 552000.

The previous prime is 1380241. The next prime is 1380251. The reversal of 1380250 is 520831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 271441 + 1108809 = 521^2 + 1053^2 .

It is not an unprimeable number, because it can be changed into a prime (1380251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511 + ... + 3010.

2^1380250 is an apocalyptic number.

1380250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380250 is a deficient number, since it is larger than the sum of its proper divisors (1204046).

1380250 is an equidigital number, since it uses as much as digits as its factorization.

1380250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1380250 is about 1174.8404146947. The cubic root of 1380250 is about 111.3403507913.

The spelling of 1380250 in words is "one million, three hundred eighty thousand, two hundred fifty".