4739449646 has 16 divisors (see below), whose sum is σ = 7156084320. Its totient is φ = 2354105760.

The previous prime is 4739449639. The next prime is 4739449721. The reversal of 4739449646 is 6469449374.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4739449591 and 4739449600.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 738620 + ... + 745008.

It is an arithmetic number, because the mean of its divisors is an integer number (447255270).

Almost surely, 2^4739449646 is an apocalyptic number.

4739449646 is a deficient number, since it is larger than the sum of its proper divisors (2416634674).

4739449646 is a wasteful number, since it uses less digits than its factorization.

4739449646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8779.

The product of its digits is 15676416, while the sum is 56.

The square root of 4739449646 is about 68843.6608991707. The cubic root of 4739449646 is about 1679.7422183369.

The spelling of 4739449646 in words is "four billion, seven hundred thirty-nine million, four hundred forty-nine thousand, six hundred forty-six".