4646644442 has 32 divisors (see below), whose sum is σ = 8071208064. Its totient is φ = 1982848000.

The previous prime is 4646644433. The next prime is 4646644463. The reversal of 4646644442 is 2444466464.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4646644393 and 4646644402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134483 + ... + 165465.

It is an arithmetic number, because the mean of its divisors is an integer number (252225252).

Almost surely, 2^4646644442 is an apocalyptic number.

4646644442 is a deficient number, since it is larger than the sum of its proper divisors (3424563622).

4646644442 is a wasteful number, since it uses less digits than its factorization.

4646644442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31414.

The product of its digits is 1769472, while the sum is 44.

The square root of 4646644442 is about 68166.2998995838. The cubic root of 4646644442 is about 1668.7059479326.

The spelling of 4646644442 in words is "four billion, six hundred forty-six million, six hundred forty-four thousand, four hundred forty-two".