33488381 has 2 divisors, whose sum is σ = 33488382. Its totient is φ = 33488380.

The previous prime is 33488369. The next prime is 33488407. The reversal of 33488381 is 18388433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 1464100 = 5659^2 + 1210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33488381 is a prime.

It is a super-2 number, since 2×33488381² = 2242943324002322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33488311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16744190 + 16744191.

It is an arithmetic number, because the mean of its divisors is an integer number (16744191).

Almost surely, 2^33488381 is an apocalyptic number.

It is an amenable number.

33488381 is a deficient number, since it is larger than the sum of its proper divisors (1).

33488381 is an equidigital number, since it uses as much as digits as its factorization.

33488381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 33488381 is about 5786.9146356241. The cubic root of 33488381 is about 322.3280127775.

The spelling of 33488381 in words is "thirty-three million, four hundred eighty-eight thousand, three hundred eighty-one".