36573440 has 36 divisors (see below), whose sum is σ = 87607884. Its totient is φ = 14628864.

The previous prime is 36573421. The next prime is 36573457. The reversal of 36573440 is 4437563.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 32444416 = 2032^2 + 5696^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 36573397 and 36573406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13007 + ... + 15566.

Almost surely, 2^36573440 is an apocalyptic number.

It is an amenable number.

36573440 is an abundant number, since it is smaller than the sum of its proper divisors (51034444).

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

36573440 is an equidigital number, since it uses as much as digits as its factorization.

36573440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28594 (or 28580 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 36573440 is about 6047.5978702291. The cubic root of 36573440 is about 331.9366986295.

The spelling of 36573440 in words is "thirty-six million, five hundred seventy-three thousand, four hundred forty".