1646506848 has 192 divisors, whose sum is σ = 5285564928. Its totient is φ = 438067200.

The previous prime is 1646506789. The next prime is 1646506877. The reversal of 1646506848 is 8486056461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1646506797 and 1646506806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1153111 + ... + 1154537.

It is an arithmetic number, because the mean of its divisors is an integer number (27528984).

Almost surely, 2^1646506848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1646506848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642782464).

1646506848 is an abundant number, since it is smaller than the sum of its proper divisors (3639058080).

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

1646506848 is a wasteful number, since it uses less digits than its factorization.

1646506848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 1646506848 is about 40577.1715130565. The cubic root of 1646506848 is about 1180.8312748306.

The spelling of 1646506848 in words is "one billion, six hundred forty-six million, five hundred six thousand, eight hundred forty-eight".