1428602873 has 4 divisors (see below), whose sum is σ = 1429001460. Its totient is φ = 1428204288.

The previous prime is 1428602869. The next prime is 1428602881. The reversal of 1428602873 is 3782068241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350925289 + 1077677584 = 18733^2 + 32828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428602873 - 2² = 1428602869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428602873.

It is not an unprimeable number, because it can be changed into a prime (1428602173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193868 + ... + 201101.

It is an arithmetic number, because the mean of its divisors is an integer number (357250365).

Almost surely, 2^1428602873 is an apocalyptic number.

It is an amenable number.

1428602873 is a deficient number, since it is larger than the sum of its proper divisors (398587).

1428602873 is an equidigital number, since it uses as much as digits as its factorization.

1428602873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398586.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 1428602873 is about 37796.8632693243. The cubic root of 1428602873 is about 1126.2561437012.

The spelling of 1428602873 in words is "one billion, four hundred twenty-eight million, six hundred two thousand, eight hundred seventy-three".