36561444 has 24 divisors (see below), whose sum is σ = 89019840. Its totient is φ = 11657184.

The previous prime is 36561443. The next prime is 36561451. The reversal of 36561444 is 44416563.

It is not an unprimeable number, because it can be changed into a prime (36561443) 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 7 ways as a sum of consecutive naturals, for example, 65959 + ... + 66510.

It is an arithmetic number, because the mean of its divisors is an integer number (3709160).

Almost surely, 2^36561444 is an apocalyptic number.

It is an amenable number.

36561444 is an abundant number, since it is smaller than the sum of its proper divisors (52458396).

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

36561444 is a wasteful number, since it uses less digits than its factorization.

36561444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132499 (or 132497 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 36561444 is about 6046.6059901403. The cubic root of 36561444 is about 331.9004031824.

The spelling of 36561444 in words is "thirty-six million, five hundred sixty-one thousand, four hundred forty-four".