649814433 has 8 divisors (see below), whose sum is σ = 884853888. Its totient is φ = 423992304.

The previous prime is 649814357. The next prime is 649814437. The reversal of 649814433 is 334418946.

649814433 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 a de Polignac number, because 649814433 - 2¹⁷ = 649683361 is a prime.

It is a super-2 number, since 2×649814433² = 844517594670222978, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 7 ways as a sum of consecutive naturals, for example, 2304166 + ... + 2304447.

It is an arithmetic number, because the mean of its divisors is an integer number (110606736).

Almost surely, 2^649814433 is an apocalyptic number.

It is an amenable number.

649814433 is a deficient number, since it is larger than the sum of its proper divisors (235039455).

649814433 is a wasteful number, since it uses less digits than its factorization.

649814433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608663.

The product of its digits is 248832, while the sum is 42.

The square root of 649814433 is about 25491.4580399003. The cubic root of 649814433 is about 866.1566639607.

The spelling of 649814433 in words is "six hundred forty-nine million, eight hundred fourteen thousand, four hundred thirty-three".