1378480429 has 2 divisors, whose sum is σ = 1378480430. Its totient is φ = 1378480428.

The previous prime is 1378480423. The next prime is 1378480489. The reversal of 1378480429 is 9240848731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375668100 + 2812329 = 37090^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378480429 - 2⁹ = 1378479917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1378480423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689240214 + 689240215.

It is an arithmetic number, because the mean of its divisors is an integer number (689240215).

Almost surely, 2^1378480429 is an apocalyptic number.

It is an amenable number.

1378480429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378480429 is an equidigital number, since it uses as much as digits as its factorization.

1378480429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1378480429 is about 37127.8928704552. The cubic root of 1378480429 is about 1112.9274856579.

The spelling of 1378480429 in words is "one billion, three hundred seventy-eight million, four hundred eighty thousand, four hundred twenty-nine".