4385640546 has 48 divisors (see below), whose sum is σ = 10863590400. Its totient is φ = 1252589184.

The previous prime is 4385640517. The next prime is 4385640551. The reversal of 4385640546 is 6450465834.

4385640546 is a `hidden beast` number, since 4 + 38 + 564 + 0 + 54 + 6 = 666.

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 23 ways as a sum of consecutive naturals, for example, 519850 + ... + 528218.

It is an arithmetic number, because the mean of its divisors is an integer number (226324800).

Almost surely, 2^4385640546 is an apocalyptic number.

4385640546 is an abundant number, since it is smaller than the sum of its proper divisors (6477949854).

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

4385640546 is a wasteful number, since it uses less digits than its factorization.

4385640546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12543 (or 12540 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The square root of 4385640546 is about 66224.1688962572. The cubic root of 4385640546 is about 1636.8580218429.

The spelling of 4385640546 in words is "four billion, three hundred eighty-five million, six hundred forty thousand, five hundred forty-six".