35640636 has 72 divisors (see below), whose sum is σ = 90773760. Its totient is φ = 10875648.

The previous prime is 35640601. The next prime is 35640641. The reversal of 35640636 is 63604653.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 35640597 and 35640606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149005 + ... + 149243.

Almost surely, 2^35640636 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 35640636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45386880).

35640636 is an abundant number, since it is smaller than the sum of its proper divisors (55133124).

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

35640636 is a wasteful number, since it uses less digits than its factorization.

35640636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 35640636 is about 5969.9778894063. The cubic root of 35640636 is about 329.0903506747.

The spelling of 35640636 in words is "thirty-five million, six hundred forty thousand, six hundred thirty-six".