646013234 has 8 divisors (see below), whose sum is σ = 969277440. Its totient is φ = 322920756.

The previous prime is 646013227. The next prime is 646013279. The reversal of 646013234 is 432310646.

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

It is a junction number, because it is equal to n+sod(n) for n = 646013197 and 646013206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33074 + ... + 48845.

It is an arithmetic number, because the mean of its divisors is an integer number (121159680).

Almost surely, 2^646013234 is an apocalyptic number.

646013234 is a deficient number, since it is larger than the sum of its proper divisors (323264206).

646013234 is a wasteful number, since it uses less digits than its factorization.

646013234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85864.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 646013234 is about 25416.7903953273. The cubic root of 646013234 is about 864.4644502534.

The spelling of 646013234 in words is "six hundred forty-six million, thirteen thousand, two hundred thirty-four".