64536234 has 96 divisors (see below), whose sum is σ = 158731776. Its totient is φ = 17418240.

The previous prime is 64536191. The next prime is 64536239. The reversal of 64536234 is 43263546.

It is a junction number, because it is equal to n+sod(n) for n = 64536195 and 64536204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64536239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 665274 + ... + 665370.

It is an arithmetic number, because the mean of its divisors is an integer number (1653456).

Almost surely, 2^64536234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64536234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79365888).

64536234 is an abundant number, since it is smaller than the sum of its proper divisors (94195542).

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

64536234 is a wasteful number, since it uses less digits than its factorization.

64536234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 64536234 is about 8033.4447156870. Note that the first 3 decimals coincide. The cubic root of 64536234 is about 401.1140485259.

The spelling of 64536234 in words is "sixty-four million, five hundred thirty-six thousand, two hundred thirty-four".