33994481 has 4 divisors (see below), whose sum is σ = 34019700. Its totient is φ = 33969264.

The previous prime is 33994451. The next prime is 33994501. The reversal of 33994481 is 18449933.

33994481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 30030400 = 1991^2 + 5480^2 .

It is a cyclic number.

It is not a de Polignac number, because 33994481 - 2¹⁰ = 33993457 is a prime.

It is a super-2 number, since 2×33994481² = 2311249476918722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33994451) 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 3 ways as a sum of consecutive naturals, for example, 10466 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (8504925).

Almost surely, 2^33994481 is an apocalyptic number.

It is an amenable number.

33994481 is a deficient number, since it is larger than the sum of its proper divisors (25219).

33994481 is a wasteful number, since it uses less digits than its factorization.

33994481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25218.

The product of its digits is 93312, while the sum is 41.

The square root of 33994481 is about 5830.4786252931. The cubic root of 33994481 is about 323.9436503385.

The spelling of 33994481 in words is "thirty-three million, nine hundred ninety-four thousand, four hundred eighty-one".