36550440 has 160 divisors (see below), whose sum is σ = 127413000. Its totient is φ = 9386496.

The previous prime is 36550439. The next prime is 36550447. The reversal of 36550440 is 4405563.

36550440 is a `hidden beast` number, since 3 + 655 + 0 + 4 + 4 + 0 = 666.

36550440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25220484 + 11329956 = 5022^2 + 3366^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (36550447) 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 39 ways as a sum of consecutive naturals, for example, 93766 + ... + 94154.

Almost surely, 2^36550440 is an apocalyptic number.

36550440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36550440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63706500).

36550440 is an abundant number, since it is smaller than the sum of its proper divisors (90862560).

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

36550440 is a wasteful number, since it uses less digits than its factorization.

36550440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 36550440 is about 6045.6959897104. The cubic root of 36550440 is about 331.8671021773.

It can be divided in two parts, 365 and 50440, that added together give a palindrome (50805).

The spelling of 36550440 in words is "thirty-six million, five hundred fifty thousand, four hundred forty".