1380469 has 2 divisors, whose sum is σ = 1380470. Its totient is φ = 1380468.

The previous prime is 1380443. The next prime is 1380499. The reversal of 1380469 is 9640831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 439569 = 970^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380469 - 2⁷ = 1380341 is a prime.

It is a super-2 number, since 2×1380469² = 3811389319922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690234 + 690235.

It is an arithmetic number, because the mean of its divisors is an integer number (690235).

2^1380469 is an apocalyptic number.

It is an amenable number.

1380469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380469 is an equidigital number, since it uses as much as digits as its factorization.

1380469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1380469 is about 1174.9336151460. The cubic root of 1380469 is about 111.3462391563.

It can be divided in two parts, 1380 and 469, that added together give a square (1849 = 43²).

The spelling of 1380469 in words is "one million, three hundred eighty thousand, four hundred sixty-nine".