33420365 has 16 divisors (see below), whose sum is σ = 44283456. Its totient is φ = 24009600.

The previous prime is 33420347. The next prime is 33420389. The reversal of 33420365 is 56302433.

It is not a de Polignac number, because 33420365 - 2⁸ = 33420109 is a prime.

It is a super-2 number, since 2×33420365² = 2233841593466450, which contains 22 as substring.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 905 + ... + 8225.

It is an arithmetic number, because the mean of its divisors is an integer number (2767716).

Almost surely, 2^33420365 is an apocalyptic number.

It is an amenable number.

33420365 is a deficient number, since it is larger than the sum of its proper divisors (10863091).

33420365 is a wasteful number, since it uses less digits than its factorization.

33420365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 33420365 is about 5781.0349419459. The cubic root of 33420365 is about 322.1096452855.

Adding to 33420365 its reverse (56302433), we get a palindrome (89722798).

The spelling of 33420365 in words is "thirty-three million, four hundred twenty thousand, three hundred sixty-five".