38243291 has 2 divisors, whose sum is σ = 38243292. Its totient is φ = 38243290.

The previous prime is 38243281. The next prime is 38243299. The reversal of 38243291 is 19234283.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38243291 is a prime.

It is not a weakly prime, because it can be changed into another prime (38243299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19121645 + 19121646.

It is an arithmetic number, because the mean of its divisors is an integer number (19121646).

Almost surely, 2^38243291 is an apocalyptic number.

38243291 is a deficient number, since it is larger than the sum of its proper divisors (1).

38243291 is an equidigital number, since it uses as much as digits as its factorization.

38243291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 38243291 is about 6184.1160241380. The cubic root of 38243291 is about 336.9135046738.

The spelling of 38243291 in words is "thirty-eight million, two hundred forty-three thousand, two hundred ninety-one".