33664436 has 24 divisors (see below), whose sum is σ = 64490664. Its totient is φ = 15281280.

The previous prime is 33664429. The next prime is 33664439. The reversal of 33664436 is 63446633.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2371600 + 31292836 = 1540^2 + 5594^2 .

It is a super-2 number, since 2×33664436² = 2266588502396192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33664396 and 33664405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33664439) 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 7 ways as a sum of consecutive naturals, for example, 2135 + ... + 8478.

It is an arithmetic number, because the mean of its divisors is an integer number (2687111).

Almost surely, 2^33664436 is an apocalyptic number.

It is an amenable number.

33664436 is a deficient number, since it is larger than the sum of its proper divisors (30826228).

33664436 is a wasteful number, since it uses less digits than its factorization.

33664436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691 (or 10689 counting only the distinct ones).

The product of its digits is 93312, while the sum is 35.

The square root of 33664436 is about 5802.1061693147. The cubic root of 33664436 is about 322.8918730563.

The spelling of 33664436 in words is "thirty-three million, six hundred sixty-four thousand, four hundred thirty-six".