3836240491 has 2 divisors, whose sum is σ = 3836240492. Its totient is φ = 3836240490.

The previous prime is 3836240489. The next prime is 3836240531. The reversal of 3836240491 is 1940426383.

It is a happy number.

It is an a-pointer prime, because the next prime (3836240531) can be obtained adding 3836240491 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3836240491 - 2¹ = 3836240489 is a prime.

It is a super-2 number, since 2×3836240491² = 29433482209575842162, which contains 22 as substring.

Together with 3836240489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3836240411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1918120245 + 1918120246.

It is an arithmetic number, because the mean of its divisors is an integer number (1918120246).

Almost surely, 2^3836240491 is an apocalyptic number.

3836240491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3836240491 is an equidigital number, since it uses as much as digits as its factorization.

3836240491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 3836240491 is about 61937.3917032353. The cubic root of 3836240491 is about 1565.4358486237.

The spelling of 3836240491 in words is "three billion, eight hundred thirty-six million, two hundred forty thousand, four hundred ninety-one".