1648235456 has 56 divisors (see below), whose sum is σ = 3743187840. Its totient is φ = 705399552.

The previous prime is 1648235437. The next prime is 1648235473. The reversal of 1648235456 is 6545328461.

It is a tau number, because it is divible by the number of its divisors (56).

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 7 ways as a sum of consecutive naturals, for example, 382691 + ... + 386973.

It is an arithmetic number, because the mean of its divisors is an integer number (66842640).

Almost surely, 2^1648235456 is an apocalyptic number.

1648235456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1648235456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871593920).

1648235456 is an abundant number, since it is smaller than the sum of its proper divisors (2094952384).

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

1648235456 is an equidigital number, since it uses as much as digits as its factorization.

1648235456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161 (or 5151 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 1648235456 is about 40598.4661779235. The cubic root of 1648235456 is about 1181.2443676523.

The spelling of 1648235456 in words is "one billion, six hundred forty-eight million, two hundred thirty-five thousand, four hundred fifty-six".