4457606646 has 32 divisors (see below), whose sum is σ = 9229167360. Its totient is φ = 1433615904.

The previous prime is 4457606581. The next prime is 4457606687. The reversal of 4457606646 is 6466067544.

It is a junction number, because it is equal to n+sod(n) for n = 4457606595 and 4457606604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260181 + ... + 276783.

It is an arithmetic number, because the mean of its divisors is an integer number (288411480).

Almost surely, 2^4457606646 is an apocalyptic number.

4457606646 is an abundant number, since it is smaller than the sum of its proper divisors (4771560714).

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

4457606646 is a wasteful number, since it uses less digits than its factorization.

4457606646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18180.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The square root of 4457606646 is about 66765.3101992345. The cubic root of 4457606646 is about 1645.7628223304.

The spelling of 4457606646 in words is "four billion, four hundred fifty-seven million, six hundred six thousand, six hundred forty-six".