649814434 has 8 divisors (see below), whose sum is σ = 984185280. Its totient is φ = 321752676.

The previous prime is 649814357. The next prime is 649814437. The reversal of 649814434 is 434418946.

649814434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (649814437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577014 + ... + 1577425.

It is an arithmetic number, because the mean of its divisors is an integer number (123023160).

Almost surely, 2^649814434 is an apocalyptic number.

649814434 is a deficient number, since it is larger than the sum of its proper divisors (334370846).

649814434 is a wasteful number, since it uses less digits than its factorization.

649814434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154544.

The product of its digits is 331776, while the sum is 43.

The square root of 649814434 is about 25491.4580595148. The cubic root of 649814434 is about 866.1566644050.

The spelling of 649814434 in words is "six hundred forty-nine million, eight hundred fourteen thousand, four hundred thirty-four".