1428275605 has 8 divisors (see below), whose sum is σ = 1714133592. Its totient is φ = 1142485248.

The previous prime is 1428275603. The next prime is 1428275609. The reversal of 1428275605 is 5065728241.

It can be written as a sum of positive squares in 4 ways, for example, as 134722449 + 1293553156 = 11607^2 + 35966^2 .

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 1428275605 - 2¹ = 1428275603 is a prime.

It is a super-3 number, since 3×1428275605³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428275603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74137 + ... + 91393.

It is an arithmetic number, because the mean of its divisors is an integer number (214266699).

Almost surely, 2^1428275605 is an apocalyptic number.

It is an amenable number.

1428275605 is a deficient number, since it is larger than the sum of its proper divisors (285857987).

1428275605 is a wasteful number, since it uses less digits than its factorization.

1428275605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33815.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1428275605 is about 37792.5337202998. The cubic root of 1428275605 is about 1126.1701352539.

The spelling of 1428275605 in words is "one billion, four hundred twenty-eight million, two hundred seventy-five thousand, six hundred five".