33454409 has 2 divisors, whose sum is σ = 33454410. Its totient is φ = 33454408.

The previous prime is 33454403. The next prime is 33454417. The reversal of 33454409 is 90445433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 15366400 = 4253^2 + 3920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33454409 is a prime.

It is a super-2 number, since 2×33454409² = 2238394963078562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33454403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16727204 + 16727205.

It is an arithmetic number, because the mean of its divisors is an integer number (16727205).

Almost surely, 2^33454409 is an apocalyptic number.

It is an amenable number.

33454409 is a deficient number, since it is larger than the sum of its proper divisors (1).

33454409 is an equidigital number, since it uses as much as digits as its factorization.

33454409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 33454409 is about 5783.9786479551. The cubic root of 33454409 is about 322.2189816074.

The spelling of 33454409 in words is "thirty-three million, four hundred fifty-four thousand, four hundred nine".