1648684536 has 32 divisors (see below), whose sum is σ = 4154173440. Its totient is φ = 545233248.

The previous prime is 1648684507. The next prime is 1648684537. The reversal of 1648684536 is 6354868461.

1648684536 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648684537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267406 + ... + 273501.

It is an arithmetic number, because the mean of its divisors is an integer number (129817920).

Almost surely, 2^1648684536 is an apocalyptic number.

It is an amenable number.

1648684536 is an abundant number, since it is smaller than the sum of its proper divisors (2505488904).

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

1648684536 is a wasteful number, since it uses less digits than its factorization.

1648684536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541043 (or 541039 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The square root of 1648684536 is about 40603.9965520637. The cubic root of 1648684536 is about 1181.3516389462.

The spelling of 1648684536 in words is "one billion, six hundred forty-eight million, six hundred eighty-four thousand, five hundred thirty-six".