33964820 has 12 divisors (see below), whose sum is σ = 71326164. Its totient is φ = 13585920.

The previous prime is 33964817. The next prime is 33964849. The reversal of 33964820 is 2846933.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 25120144 = 2974^2 + 5012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849101 + ... + 849140.

It is an arithmetic number, because the mean of its divisors is an integer number (5943847).

Almost surely, 2^33964820 is an apocalyptic number.

It is an amenable number.

33964820 is an abundant number, since it is smaller than the sum of its proper divisors (37361344).

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

33964820 is a wasteful number, since it uses less digits than its factorization.

33964820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698250 (or 1698248 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 33964820 is about 5827.9344539897. The cubic root of 33964820 is about 323.8494067218.

The spelling of 33964820 in words is "thirty-three million, nine hundred sixty-four thousand, eight hundred twenty".