36631240 has 64 divisors (see below), whose sum is σ = 87595200. Its totient is φ = 13747968.

The previous prime is 36631223. The next prime is 36631247. The reversal of 36631240 is 4213663.

36631240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (36631247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119167 + ... + 119473.

It is an arithmetic number, because the mean of its divisors is an integer number (1368675).

Almost surely, 2^36631240 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 36631240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43797600).

36631240 is an abundant number, since it is smaller than the sum of its proper divisors (50963960).

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

36631240 is a wasteful number, since it uses less digits than its factorization.

36631240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 36631240 is about 6052.3747405461. The cubic root of 36631240 is about 332.1114688362. Note that the first 3 decimals are identical.

The spelling of 36631240 in words is "thirty-six million, six hundred thirty-one thousand, two hundred forty".