38405201 has 2 divisors, whose sum is σ = 38405202. Its totient is φ = 38405200.

The previous prime is 38405177. The next prime is 38405203. The reversal of 38405201 is 10250483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38130625 + 274576 = 6175^2 + 524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38405201 is a prime.

Together with 38405203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38405203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202600 + 19202601.

It is an arithmetic number, because the mean of its divisors is an integer number (19202601).

Almost surely, 2^38405201 is an apocalyptic number.

It is an amenable number.

38405201 is a deficient number, since it is larger than the sum of its proper divisors (1).

38405201 is an equidigital number, since it uses as much as digits as its factorization.

38405201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 38405201 is about 6197.1929936061. The cubic root of 38405201 is about 337.3882970070.

Adding to 38405201 its reverse (10250483), we get a palindrome (48655684).

The spelling of 38405201 in words is "thirty-eight million, four hundred five thousand, two hundred one".