1386426401 has 2 divisors, whose sum is σ = 1386426402. Its totient is φ = 1386426400.

The previous prime is 1386426383. The next prime is 1386426451. The reversal of 1386426401 is 1046246831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803155600 + 583270801 = 28340^2 + 24151^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386426401 - 2²⁶ = 1319317537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1386426451) 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 as a sum of consecutive naturals, namely, 693213200 + 693213201.

It is an arithmetic number, because the mean of its divisors is an integer number (693213201).

Almost surely, 2^1386426401 is an apocalyptic number.

It is an amenable number.

1386426401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386426401 is an equidigital number, since it uses as much as digits as its factorization.

1386426401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1386426401 is about 37234.7472262133. The cubic root of 1386426401 is about 1115.0618051767.

The spelling of 1386426401 in words is "one billion, three hundred eighty-six million, four hundred twenty-six thousand, four hundred one".