33680474 has 4 divisors (see below), whose sum is σ = 50520714. Its totient is φ = 16840236.

The previous prime is 33680459. The next prime is 33680489. The reversal of 33680474 is 47408633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47408633 = 4889 ⋅9697.

It is an interprime number because it is at equal distance from previous prime (33680459) and next prime (33680489).

It can be written as a sum of positive squares in only one way, i.e., 30415225 + 3265249 = 5515^2 + 1807^2 .

It is a super-2 number, since 2×33680474² = 2268748657729352, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8420117 + ... + 8420120.

Almost surely, 2^33680474 is an apocalyptic number.

33680474 is a deficient number, since it is larger than the sum of its proper divisors (16840240).

33680474 is a wasteful number, since it uses less digits than its factorization.

33680474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16840239.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 33680474 is about 5803.4880890720. The cubic root of 33680474 is about 322.9431409850.

The spelling of 33680474 in words is "thirty-three million, six hundred eighty thousand, four hundred seventy-four".