38090243 has 2 divisors, whose sum is σ = 38090244. Its totient is φ = 38090242.

The previous prime is 38090233. The next prime is 38090249. The reversal of 38090243 is 34209083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38090243 - 2⁶ = 38090179 is a prime.

It is a super-2 number, since 2×38090243² = 2901733223598098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38090249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19045121 + 19045122.

It is an arithmetic number, because the mean of its divisors is an integer number (19045122).

Almost surely, 2^38090243 is an apocalyptic number.

38090243 is a deficient number, since it is larger than the sum of its proper divisors (1).

38090243 is an equidigital number, since it uses as much as digits as its factorization.

38090243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 38090243 is about 6171.7293362558. The cubic root of 38090243 is about 336.4634660256.

The spelling of 38090243 in words is "thirty-eight million, ninety thousand, two hundred forty-three".