1380752 has 10 divisors (see below), whose sum is σ = 2675238. Its totient is φ = 690368.

The previous prime is 1380727. The next prime is 1380763. The reversal of 1380752 is 2570831.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 541696 = 916^2 + 736^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 3³ + 8⁵ + 0 + 7⁷ + 5³ + 2¹⁹ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43133 + ... + 43164.

2^1380752 is an apocalyptic number.

It is an amenable number.

1380752 is a deficient number, since it is larger than the sum of its proper divisors (1294486).

1380752 is an equidigital number, since it uses as much as digits as its factorization.

1380752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86305 (or 86299 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1380752 is about 1175.0540413104. The cubic root of 1380752 is about 111.3538473998.

The spelling of 1380752 in words is "one million, three hundred eighty thousand, seven hundred fifty-two".