1380719 has 8 divisors (see below), whose sum is σ = 1460160. Its totient is φ = 1303456.

The previous prime is 1380707. The next prime is 1380721. The reversal of 1380719 is 9170831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380719 - 2¹² = 1376623 is a prime.

It is a super-2 number, since 2×1380719² = 3812769913922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380691 and 1380700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380779) 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, 857 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

2^1380719 is an apocalyptic number.

1380719 is a deficient number, since it is larger than the sum of its proper divisors (79441).

1380719 is a wasteful number, since it uses less digits than its factorization.

1380719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1380719 is about 1175.0399993192. The cubic root of 1380719 is about 111.3529602730.

The spelling of 1380719 in words is "one million, three hundred eighty thousand, seven hundred nineteen".