38405933 has 2 divisors, whose sum is σ = 38405934. Its totient is φ = 38405932.

The previous prime is 38405911. The next prime is 38405951. The reversal of 38405933 is 33950483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24730729 + 13675204 = 4973^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 38405933 - 2¹² = 38401837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38405893 and 38405902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38405953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202966 + 19202967.

It is an arithmetic number, because the mean of its divisors is an integer number (19202967).

Almost surely, 2^38405933 is an apocalyptic number.

It is an amenable number.

38405933 is a deficient number, since it is larger than the sum of its proper divisors (1).

38405933 is an equidigital number, since it uses as much as digits as its factorization.

38405933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 38405933 is about 6197.2520523213. The cubic root of 38405933 is about 337.3904405245.

The spelling of 38405933 in words is "thirty-eight million, four hundred five thousand, nine hundred thirty-three".