38840833 has 2 divisors, whose sum is σ = 38840834. Its totient is φ = 38840832.

The previous prime is 38840819. The next prime is 38840917. The reversal of 38840833 is 33804883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27164944 + 11675889 = 5212^2 + 3417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38840833 is a prime.

It is a super-2 number, since 2×38840833² = 3017220616267778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38840792 and 38840801.

It is not a weakly prime, because it can be changed into another prime (38840803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19420416 + 19420417.

It is an arithmetic number, because the mean of its divisors is an integer number (19420417).

Almost surely, 2^38840833 is an apocalyptic number.

It is an amenable number.

38840833 is a deficient number, since it is larger than the sum of its proper divisors (1).

38840833 is an equidigital number, since it uses as much as digits as its factorization.

38840833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 38840833 is about 6232.2414106002. The cubic root of 38840833 is about 338.6591742811.

The spelling of 38840833 in words is "thirty-eight million, eight hundred forty thousand, eight hundred thirty-three".