649413219 has 64 divisors (see below), whose sum is σ = 1113728000. Its totient is φ = 334285056.

The previous prime is 649413161. The next prime is 649413221. The reversal of 649413219 is 912314946.

It is not a de Polignac number, because 649413219 - 2⁷ = 649413091 is a prime.

It is a super-2 number, since 2×649413219² = 843475058023883922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (649413299) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 574647 + ... + 575775.

It is an arithmetic number, because the mean of its divisors is an integer number (17402000).

Almost surely, 2^649413219 is an apocalyptic number.

649413219 is a deficient number, since it is larger than the sum of its proper divisors (464314781).

649413219 is a wasteful number, since it uses less digits than its factorization.

649413219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1195 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 649413219 is about 25483.5872474815. The cubic root of 649413219 is about 865.9783639679.

The spelling of 649413219 in words is "six hundred forty-nine million, four hundred thirteen thousand, two hundred nineteen".