649340156 has 24 divisors (see below), whose sum is σ = 1176892416. Its totient is φ = 313280240.

The previous prime is 649340129. The next prime is 649340161. The reversal of 649340156 is 651043946.

649340156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10976 + ... + 37671.

It is an arithmetic number, because the mean of its divisors is an integer number (49037184).

Almost surely, 2^649340156 is an apocalyptic number.

It is an amenable number.

649340156 is a deficient number, since it is larger than the sum of its proper divisors (527552260).

649340156 is a wasteful number, since it uses less digits than its factorization.

649340156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48769 (or 48767 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 649340156 is about 25482.1536766420. The cubic root of 649340156 is about 865.9458867776.

The spelling of 649340156 in words is "six hundred forty-nine million, three hundred forty thousand, one hundred fifty-six".