33628249 has 4 divisors (see below), whose sum is σ = 33650640. Its totient is φ = 33605860.

The previous prime is 33628247. The next prime is 33628267. The reversal of 33628249 is 94282633.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94282633 = 7901 ⋅11933.

It is a cyclic number.

It is not a de Polignac number, because 33628249 - 2¹ = 33628247 is a prime.

It is a super-2 number, since 2×33628249² = 2261718261612002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33628247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8767 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (8412660).

Almost surely, 2^33628249 is an apocalyptic number.

It is an amenable number.

33628249 is a deficient number, since it is larger than the sum of its proper divisors (22391).

33628249 is a wasteful number, since it uses less digits than its factorization.

33628249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22390.

The product of its digits is 62208, while the sum is 37.

The square root of 33628249 is about 5798.9868942773. The cubic root of 33628249 is about 322.7761359087.

It can be divided in two parts, 3362 and 8249, that added together give a palindrome (11611).

The spelling of 33628249 in words is "thirty-three million, six hundred twenty-eight thousand, two hundred forty-nine".