33398449 has 12 divisors (see below), whose sum is σ = 39387684. Its totient is φ = 28232064.

The previous prime is 33398437. The next prime is 33398467. The reversal of 33398449 is 94489333.

It can be written as a sum of positive squares in 2 ways, for example, as 26471025 + 6927424 = 5145^2 + 2632^2 .

It is a de Polignac number, because none of the positive numbers 2^k-33398449 is a prime.

It is a super-2 number, since 2×33398449² = 2230912791211202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33398429) 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, 1092 + ... + 8245.

It is an arithmetic number, because the mean of its divisors is an integer number (3282307).

Almost surely, 2^33398449 is an apocalyptic number.

It is an amenable number.

33398449 is a deficient number, since it is larger than the sum of its proper divisors (5989235).

33398449 is an equidigital number, since it uses as much as digits as its factorization.

33398449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424 (or 9417 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 33398449 is about 5779.1391227414. The cubic root of 33398449 is about 322.0392201755.

The spelling of 33398449 in words is "thirty-three million, three hundred ninety-eight thousand, four hundred forty-nine".