1648772352 has 54 divisors (see below), whose sum is σ = 4753823802. Its totient is φ = 549590016.

The previous prime is 1648772327. The next prime is 1648772371. The reversal of 1648772352 is 2532778461.

It can be written as a sum of positive squares in only one way, i.e., 1575772416 + 72999936 = 39696^2 + 8544^2 .

It is a super-2 number, since 2×1648772352² = 5436900537439223808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1648772298 and 1648772307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355503 + ... + 360110.

Almost surely, 2^1648772352 is an apocalyptic number.

1648772352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648772352 is an abundant number, since it is smaller than the sum of its proper divisors (3105051450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1648772352 is an equidigital number, since it uses as much as digits as its factorization.

1648772352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715635 (or 715618 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 1648772352 is about 40605.0779090497. The cubic root of 1648772352 is about 1181.3726131899.

The spelling of 1648772352 in words is "one billion, six hundred forty-eight million, seven hundred seventy-two thousand, three hundred fifty-two".