1428760805 has 8 divisors (see below), whose sum is σ = 1789057152. Its totient is φ = 1093312528.

The previous prime is 1428760799. The next prime is 1428760811. The reversal of 1428760805 is 5080678241.

It is an interprime number because it is at equal distance from previous prime (1428760799) and next prime (1428760811).

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 1428760805 - 2¹⁶ = 1428695269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6211889 + ... + 6212118.

It is an arithmetic number, because the mean of its divisors is an integer number (223632144).

Almost surely, 2^1428760805 is an apocalyptic number.

It is an amenable number.

1428760805 is a deficient number, since it is larger than the sum of its proper divisors (360296347).

1428760805 is a wasteful number, since it uses less digits than its factorization.

1428760805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424035.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1428760805 is about 37798.9524325741. The cubic root of 1428760805 is about 1126.2976446983.

The spelling of 1428760805 in words is "one billion, four hundred twenty-eight million, seven hundred sixty thousand, eight hundred five".