36491136 has 128 divisors (see below), whose sum is σ = 108397440. Its totient is φ = 10782720.

The previous prime is 36491131. The next prime is 36491137. The reversal of 36491136 is 63119463.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 36491097 and 36491106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36491131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223791 + ... + 223953.

It is an arithmetic number, because the mean of its divisors is an integer number (846855).

Almost surely, 2^36491136 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 36491136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54198720).

36491136 is an abundant number, since it is smaller than the sum of its proper divisors (71906304).

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

36491136 is a wasteful number, since it uses less digits than its factorization.

36491136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 232 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 36491136 is about 6040.7893523943. The cubic root of 36491136 is about 331.6875174667.

The spelling of 36491136 in words is "thirty-six million, four hundred ninety-one thousand, one hundred thirty-six".