36330021 has 36 divisors (see below), whose sum is σ = 65750412. Its totient is φ = 19160064.

The previous prime is 36329971. The next prime is 36330023. The reversal of 36330021 is 12003363.

It is a happy number.

36330021 is a `hidden beast` number, since 363 + 300 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8767521 + 27562500 = 2961^2 + 5250^2 .

It is not a de Polignac number, because 36330021 - 2⁹ = 36329509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 36329976 and 36330003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36330023) 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 35 ways as a sum of consecutive naturals, for example, 2565 + ... + 8901.

Almost surely, 2^36330021 is an apocalyptic number.

It is an amenable number.

36330021 is a deficient number, since it is larger than the sum of its proper divisors (29420391).

36330021 is a wasteful number, since it uses less digits than its factorization.

36330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370 (or 6360 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 36330021 is about 6027.4390084015. The cubic root of 36330021 is about 331.1986437055.

Adding to 36330021 its reverse (12003363), we get a palindrome (48333384).

The spelling of 36330021 in words is "thirty-six million, three hundred thirty thousand, twenty-one".