646203234 has 16 divisors (see below), whose sum is σ = 1310610240. Its totient is φ = 212367120.

The previous prime is 646203221. The next prime is 646203253. The reversal of 646203234 is 432302646.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758029 + ... + 758880.

It is an arithmetic number, because the mean of its divisors is an integer number (81913140).

Almost surely, 2^646203234 is an apocalyptic number.

646203234 is an abundant number, since it is smaller than the sum of its proper divisors (664407006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646203234 is a wasteful number, since it uses less digits than its factorization.

646203234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516985.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 646203234 is about 25420.5278072663. The cubic root of 646203234 is about 864.5491916266.

The spelling of 646203234 in words is "six hundred forty-six million, two hundred three thousand, two hundred thirty-four".