38263261 has 2 divisors, whose sum is σ = 38263262. Its totient is φ = 38263260.

The previous prime is 38263241. The next prime is 38263279. The reversal of 38263261 is 16236283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 256036 = 6165^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 38263261 - 2⁵ = 38263229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38263201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19131630 + 19131631.

It is an arithmetic number, because the mean of its divisors is an integer number (19131631).

Almost surely, 2^38263261 is an apocalyptic number.

It is an amenable number.

38263261 is a deficient number, since it is larger than the sum of its proper divisors (1).

38263261 is an equidigital number, since it uses as much as digits as its factorization.

38263261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 38263261 is about 6185.7304338291. The cubic root of 38263261 is about 336.9721379813.

The spelling of 38263261 in words is "thirty-eight million, two hundred sixty-three thousand, two hundred sixty-one".