33404620 has 24 divisors (see below), whose sum is σ = 71341200. Its totient is φ = 13134912.

The previous prime is 33404617. The next prime is 33404629. The reversal of 33404620 is 2640433.

It is a super-2 number, since 2×33404620² = 2231737274688800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33404591 and 33404600.

It is not an unprimeable number, because it can be changed into a prime (33404629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12975 + ... + 15334.

It is an arithmetic number, because the mean of its divisors is an integer number (2972550).

Almost surely, 2^33404620 is an apocalyptic number.

It is an amenable number.

33404620 is an abundant number, since it is smaller than the sum of its proper divisors (37936580).

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

33404620 is a wasteful number, since it uses less digits than its factorization.

33404620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28377 (or 28375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 33404620 is about 5779.6730011308. The cubic root of 33404620 is about 322.0590532486.

The spelling of 33404620 in words is "thirty-three million, four hundred four thousand, six hundred twenty".