1648441201 has 9 divisors (see below), whose sum is σ = 1812414009. Its totient is φ = 1498176900.

The previous prime is 1648441187. The next prime is 1648441219. The reversal of 1648441201 is 1021448461.

The square root of 1648441201 is 40601.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1648441201 - 2⁵ = 1648441169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648441231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 444766 + ... + 448456.

Almost surely, 2^1648441201 is an apocalyptic number.

1648441201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1648441201 is the 40601-st square number.

1648441201 is the 20301-st centered octagonal number.

It is an amenable number.

1648441201 is a deficient number, since it is larger than the sum of its proper divisors (163972808).

1648441201 is an frugal number, since it uses more digits than its factorization.

1648441201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404 (or 3702 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The cubic root of 1648441201 is about 1181.2935161745.

Adding to 1648441201 its reverse (1021448461), we get a palindrome (2669889662).

The spelling of 1648441201 in words is "one billion, six hundred forty-eight million, four hundred forty-one thousand, two hundred one".