1648043748 has 72 divisors (see below), whose sum is σ = 4681430208. Its totient is φ = 485039808.

The previous prime is 1648043741. The next prime is 1648043759. The reversal of 1648043748 is 8473408461.

It is not an unprimeable number, because it can be changed into a prime (1648043741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65790 + ... + 87317.

It is an arithmetic number, because the mean of its divisors is an integer number (65019864).

Almost surely, 2^1648043748 is an apocalyptic number.

1648043748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1648043748 is an abundant number, since it is smaller than the sum of its proper divisors (3033386460).

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

1648043748 is a wasteful number, since it uses less digits than its factorization.

1648043748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153153 (or 153148 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 1648043748 is about 40596.1050841087. The cubic root of 1648043748 is about 1181.1985686182.

The spelling of 1648043748 in words is "one billion, six hundred forty-eight million, forty-three thousand, seven hundred forty-eight".