64335236 has 36 divisors (see below), whose sum is σ = 133139916. Its totient is φ = 27115200.

The previous prime is 64335233. The next prime is 64335251. The reversal of 64335236 is 63253346.

It can be written as a sum of positive squares in 2 ways, for example, as 9486400 + 54848836 = 3080^2 + 7406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64335233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9266 + ... + 14646.

It is an arithmetic number, because the mean of its divisors is an integer number (3698331).

Almost surely, 2^64335236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64335236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66569958).

64335236 is an abundant number, since it is smaller than the sum of its proper divisors (68804680).

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

64335236 is a wasteful number, since it uses less digits than its factorization.

64335236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5451 counting only the distinct ones).

The product of its digits is 38880, while the sum is 32.

The square root of 64335236 is about 8020.9248843260. The cubic root of 64335236 is about 400.6971924341.

The spelling of 64335236 in words is "sixty-four million, three hundred thirty-five thousand, two hundred thirty-six".