1648318956 has 24 divisors (see below), whose sum is σ = 3846756144. Its totient is φ = 549342720.

The previous prime is 1648318933. The next prime is 1648318967. The reversal of 1648318956 is 6598138461.

It is a junction number, because it is equal to n+sod(n) for n = 1648318899 and 1648318908.

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, 100896 + ... + 116088.

It is an arithmetic number, because the mean of its divisors is an integer number (160281506).

Almost surely, 2^1648318956 is an apocalyptic number.

It is an amenable number.

1648318956 is an abundant number, since it is smaller than the sum of its proper divisors (2198437188).

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

1648318956 is a wasteful number, since it uses less digits than its factorization.

1648318956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24241 (or 24239 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 1648318956 is about 40599.4945288731. The cubic root of 1648318956 is about 1181.2643146889.

The spelling of 1648318956 in words is "one billion, six hundred forty-eight million, three hundred eighteen thousand, nine hundred fifty-six".