33104421 has 12 divisors (see below), whose sum is σ = 54648672. Its totient is φ = 18916776.

The previous prime is 33104413. The next prime is 33104443. The reversal of 33104421 is 12440133.

It is not a de Polignac number, because 33104421 - 2³ = 33104413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33104394 and 33104403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33104411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262671 + ... + 262796.

It is an arithmetic number, because the mean of its divisors is an integer number (4554056).

Almost surely, 2^33104421 is an apocalyptic number.

It is an amenable number.

33104421 is a deficient number, since it is larger than the sum of its proper divisors (21544251).

33104421 is a wasteful number, since it uses less digits than its factorization.

33104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525480 (or 525477 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 33104421 is about 5753.6441495803. The cubic root of 33104421 is about 321.0913938964.

Adding to 33104421 its reverse (12440133), we get a palindrome (45544554).

The spelling of 33104421 in words is "thirty-three million, one hundred four thousand, four hundred twenty-one".