1645846048 has 192 divisors, whose sum is σ = 4319723520. Its totient is φ = 598348800.

The previous prime is 1645846043. The next prime is 1645846049. The reversal of 1645846048 is 8406485461.

It is a junction number, because it is equal to n+sod(n) for n = 1645845989 and 1645846007.

It is not an unprimeable number, because it can be changed into a prime (1645846043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2214765 + ... + 2215507.

It is an arithmetic number, because the mean of its divisors is an integer number (22498560).

Almost surely, 2^1645846048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1645846048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159861760).

1645846048 is an abundant number, since it is smaller than the sum of its proper divisors (2673877472).

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

1645846048 is a wasteful number, since it uses less digits than its factorization.

1645846048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The square root of 1645846048 is about 40569.0281865366. The cubic root of 1645846048 is about 1180.6732842506.

The spelling of 1645846048 in words is "one billion, six hundred forty-five million, eight hundred forty-six thousand, forty-eight".