1645346282 has 4 divisors (see below), whose sum is σ = 2468019426. Its totient is φ = 822673140.

The previous prime is 1645346243. The next prime is 1645346321. The reversal of 1645346282 is 2826435461.

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

It is an interprime number because it is at equal distance from previous prime (1645346243) and next prime (1645346321).

It can be written as a sum of positive squares in only one way, i.e., 1153349521 + 491996761 = 33961^2 + 22181^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411336569 + ... + 411336572.

Almost surely, 2^1645346282 is an apocalyptic number.

1645346282 is a deficient number, since it is larger than the sum of its proper divisors (822673144).

1645346282 is an equidigital number, since it uses as much as digits as its factorization.

1645346282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822673143.

The product of its digits is 276480, while the sum is 41.

The square root of 1645346282 is about 40562.8682664330. The cubic root of 1645346282 is about 1180.5537671791.

The spelling of 1645346282 in words is "one billion, six hundred forty-five million, three hundred forty-six thousand, two hundred eighty-two".