33090365 has 32 divisors (see below), whose sum is σ = 50353920. Its totient is φ = 20275200.

The previous prime is 33090319. The next prime is 33090371. The reversal of 33090365 is 56309033.

It is a de Polignac number, because none of the positive numbers 2^k-33090365 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22781 + ... + 24189.

It is an arithmetic number, because the mean of its divisors is an integer number (1573560).

Almost surely, 2^33090365 is an apocalyptic number.

33090365 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

33090365 is the 4697-th pentagonal number.

It is an amenable number.

33090365 is a deficient number, since it is larger than the sum of its proper divisors (17263555).

33090365 is a wasteful number, since it uses less digits than its factorization.

33090365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 33090365 is about 5752.4225331594. The cubic root of 33090365 is about 321.0459427712.

Adding to 33090365 its reverse (56309033), we get a palindrome (89399398).

The spelling of 33090365 in words is "thirty-three million, ninety thousand, three hundred sixty-five".