1648532964 has 24 divisors (see below), whose sum is σ = 4142467840. Its totient is φ = 507240864.

The previous prime is 1648532957. The next prime is 1648532989. The reversal of 1648532964 is 4692358461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5283604 + ... + 5283915.

Almost surely, 2^1648532964 is an apocalyptic number.

It is an amenable number.

1648532964 is an abundant number, since it is smaller than the sum of its proper divisors (2493934876).

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

1648532964 is a wasteful number, since it uses less digits than its factorization.

1648532964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10567539 (or 10567537 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 1648532964 is about 40602.1300426468. The cubic root of 1648532964 is about 1181.3154352710.

The spelling of 1648532964 in words is "one billion, six hundred forty-eight million, five hundred thirty-two thousand, nine hundred sixty-four".