33343664 has 30 divisors (see below), whose sum is σ = 68636604. Its totient is φ = 15688960.

The previous prime is 33343663. The next prime is 33343729. The reversal of 33343664 is 46634333.

It is a super-2 number, since 2×33343664² = 2223599857889792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33343664.

It is not an unprimeable number, because it can be changed into a prime (33343663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1019 + ... + 8229.

Almost surely, 2^33343664 is an apocalyptic number.

33343664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33343664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34318302).

33343664 is an abundant number, since it is smaller than the sum of its proper divisors (35292940).

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

33343664 is a wasteful number, since it uses less digits than its factorization.

33343664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253 (or 7230 counting only the distinct ones).

The product of its digits is 46656, while the sum is 32.

The square root of 33343664 is about 5774.3972845657. The cubic root of 33343664 is about 321.8630385978.

Adding to 33343664 its reverse (46634333), we get a palindrome (79977997).

The spelling of 33343664 in words is "thirty-three million, three hundred forty-three thousand, six hundred sixty-four".