649461445 has 8 divisors (see below), whose sum is σ = 779980320. Its totient is φ = 519151440.

The previous prime is 649461433. The next prime is 649461457. The reversal of 649461445 is 544164946.

It is an interprime number because it is at equal distance from previous prime (649461433) and next prime (649461457).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649461445 - 2²⁵ = 615907013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45291 + ... + 57880.

It is an arithmetic number, because the mean of its divisors is an integer number (97497540).

Almost surely, 2^649461445 is an apocalyptic number.

It is an amenable number.

649461445 is a deficient number, since it is larger than the sum of its proper divisors (130518875).

649461445 is a wasteful number, since it uses less digits than its factorization.

649461445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104435.

The product of its digits is 414720, while the sum is 43.

The square root of 649461445 is about 25484.5334467790. The cubic root of 649461445 is about 865.9997995437. Note that the first 3 decimals are identical.

The spelling of 649461445 in words is "six hundred forty-nine million, four hundred sixty-one thousand, four hundred forty-five".