36691040 has 48 divisors (see below), whose sum is σ = 88715088. Its totient is φ = 14332416.

The previous prime is 36691027. The next prime is 36691043. The reversal of 36691040 is 4019663.

36691040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 36690994 and 36691012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36691043) 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 7 ways as a sum of consecutive naturals, for example, 4214 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (1848231).

Almost surely, 2^36691040 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 36691040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44357544).

36691040 is an abundant number, since it is smaller than the sum of its proper divisors (52024048).

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

36691040 is a wasteful number, since it uses less digits than its factorization.

36691040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391 (or 5383 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 36691040 is about 6057.3129356176. The cubic root of 36691040 is about 332.2920930650.

The spelling of 36691040 in words is "thirty-six million, six hundred ninety-one thousand, forty".