649468150 has 24 divisors (see below), whose sum is σ = 1209677040. Its totient is φ = 259428960.

The previous prime is 649468147. The next prime is 649468151. The reversal of 649468150 is 51864946.

It is a junction number, because it is equal to n+sod(n) for n = 649468097 and 649468106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649468151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29271 + ... + 46429.

It is an arithmetic number, because the mean of its divisors is an integer number (50403210).

Almost surely, 2^649468150 is an apocalyptic number.

649468150 is a deficient number, since it is larger than the sum of its proper divisors (560208890).

649468150 is a wasteful number, since it uses less digits than its factorization.

649468150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17928 (or 17923 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 649468150 is about 25484.6649968172. The cubic root of 649468150 is about 866.0027797097.

The spelling of 649468150 in words is "six hundred forty-nine million, four hundred sixty-eight thousand, one hundred fifty".