38244091 has 2 divisors, whose sum is σ = 38244092. Its totient is φ = 38244090.

The previous prime is 38244083. The next prime is 38244109. The reversal of 38244091 is 19044283.

Together with next prime (38244109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38244091 - 2³ = 38244083 is a prime.

It is a super-3 number, since 3×38244091³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (38274091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19122045 + 19122046.

It is an arithmetic number, because the mean of its divisors is an integer number (19122046).

Almost surely, 2^38244091 is an apocalyptic number.

38244091 is a deficient number, since it is larger than the sum of its proper divisors (1).

38244091 is an equidigital number, since it uses as much as digits as its factorization.

38244091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 38244091 is about 6184.1807056392. The cubic root of 38244091 is about 336.9158539218.

The spelling of 38244091 in words is "thirty-eight million, two hundred forty-four thousand, ninety-one".