628736744 has 16 divisors (see below), whose sum is σ = 1181997600. Its totient is φ = 313537392.

The previous prime is 628736683. The next prime is 628736749. The reversal of 628736744 is 447637826.

628736744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (628736749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100652 + ... + 106715.

It is an arithmetic number, because the mean of its divisors is an integer number (73874850).

Almost surely, 2^628736744 is an apocalyptic number.

It is an amenable number.

628736744 is a deficient number, since it is larger than the sum of its proper divisors (553260856).

628736744 is a wasteful number, since it uses less digits than its factorization.

628736744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207752 (or 207748 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The square root of 628736744 is about 25074.6235066451. The cubic root of 628736744 is about 856.6885200526.

The spelling of 628736744 in words is "six hundred twenty-eight million, seven hundred thirty-six thousand, seven hundred forty-four".