33028401 has 12 divisors (see below), whose sum is σ = 51227952. Its totient is φ = 18873288.

The previous prime is 33028397. The next prime is 33028409. The reversal of 33028401 is 10482033.

It is a happy number.

It is not a de Polignac number, because 33028401 - 2² = 33028397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (33028409) 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 11 ways as a sum of consecutive naturals, for example, 112195 + ... + 112488.

It is an arithmetic number, because the mean of its divisors is an integer number (4268996).

Almost surely, 2^33028401 is an apocalyptic number.

It is an amenable number.

33028401 is a deficient number, since it is larger than the sum of its proper divisors (18199551).

33028401 is a wasteful number, since it uses less digits than its factorization.

33028401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224700 (or 224693 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 33028401 is about 5747.0341046491. The cubic root of 33028401 is about 320.8454239704.

The spelling of 33028401 in words is "thirty-three million, twenty-eight thousand, four hundred one".