1648822417 has 4 divisors (see below), whose sum is σ = 1798715376. Its totient is φ = 1498929460.

The previous prime is 1648822411. The next prime is 1648822433. The reversal of 1648822417 is 7142288461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1648822417 - 2¹⁹ = 1648298129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648822411) 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 in 3 ways as a sum of consecutive naturals, for example, 74946463 + ... + 74946484.

It is an arithmetic number, because the mean of its divisors is an integer number (449678844).

Almost surely, 2^1648822417 is an apocalyptic number.

It is an amenable number.

1648822417 is a deficient number, since it is larger than the sum of its proper divisors (149892959).

1648822417 is a wasteful number, since it uses less digits than its factorization.

1648822417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149892958.

The product of its digits is 172032, while the sum is 43.

The square root of 1648822417 is about 40605.6943913043. The cubic root of 1648822417 is about 1181.3845705352.

The spelling of 1648822417 in words is "one billion, six hundred forty-eight million, eight hundred twenty-two thousand, four hundred seventeen".