649167328 has 24 divisors (see below), whose sum is σ = 1278734688. Its totient is φ = 324409344.

The previous prime is 649167313. The next prime is 649167329. The reversal of 649167328 is 823761946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649167329) 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, 72000 + ... + 80512.

It is an arithmetic number, because the mean of its divisors is an integer number (53280612).

Almost surely, 2^649167328 is an apocalyptic number.

It is an amenable number.

649167328 is a deficient number, since it is larger than the sum of its proper divisors (629567360).

649167328 is a wasteful number, since it uses less digits than its factorization.

649167328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906 (or 10898 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 649167328 is about 25478.7622933297. The cubic root of 649167328 is about 865.8690534086.

The spelling of 649167328 in words is "six hundred forty-nine million, one hundred sixty-seven thousand, three hundred twenty-eight".