649156192 has 12 divisors (see below), whose sum is σ = 1278026316. Its totient is φ = 324578080.

The previous prime is 649156187. The next prime is 649156199. The reversal of 649156192 is 291651946.

It is a super-2 number, since 2×649156192² = 842807523223881728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649156199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10143034 + ... + 10143097.

It is an arithmetic number, because the mean of its divisors is an integer number (106502193).

Almost surely, 2^649156192 is an apocalyptic number.

It is an amenable number.

649156192 is a deficient number, since it is larger than the sum of its proper divisors (628870124).

649156192 is a wasteful number, since it uses less digits than its factorization.

649156192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20286141 (or 20286133 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 649156192 is about 25478.5437574442. The cubic root of 649156192 is about 865.8641022594.

The spelling of 649156192 in words is "six hundred forty-nine million, one hundred fifty-six thousand, one hundred ninety-two".