36640331 has 32 divisors (see below), whose sum is σ = 47029248. Its totient is φ = 27780480.

The previous prime is 36640319. The next prime is 36640333. The reversal of 36640331 is 13304663.

36640331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36640331 - 2¹⁰ = 36639307 is a prime.

It is a super-2 number, since 2×36640331² = 2685027711579122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36640331.

It is not an unprimeable number, because it can be changed into a prime (36640333) 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 31 ways as a sum of consecutive naturals, for example, 342380 + ... + 342486.

It is an arithmetic number, because the mean of its divisors is an integer number (1469664).

Almost surely, 2^36640331 is an apocalyptic number.

36640331 is a deficient number, since it is larger than the sum of its proper divisors (10388917).

36640331 is a wasteful number, since it uses less digits than its factorization.

36640331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 36640331 is about 6053.1257214765. The cubic root of 36640331 is about 332.1389406120.

Adding to 36640331 its reverse (13304663), we get a palindrome (49944994).

The spelling of 36640331 in words is "thirty-six million, six hundred forty thousand, three hundred thirty-one".