38420311 has 2 divisors, whose sum is σ = 38420312. Its totient is φ = 38420310.

The previous prime is 38420303. The next prime is 38420341. The reversal of 38420311 is 11302483.

It is a weak prime.

It is an emirp because it is prime and its reverse (11302483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38420311 - 2³ = 38420303 is a prime.

It is a super-2 number, since 2×38420311² = 2952240594673442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38420341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19210155 + 19210156.

It is an arithmetic number, because the mean of its divisors is an integer number (19210156).

Almost surely, 2^38420311 is an apocalyptic number.

38420311 is a deficient number, since it is larger than the sum of its proper divisors (1).

38420311 is an equidigital number, since it uses as much as digits as its factorization.

38420311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 38420311 is about 6198.4119740463. The cubic root of 38420311 is about 337.4325381394.

Adding to 38420311 its reverse (11302483), we get a palindrome (49722794).

The spelling of 38420311 in words is "thirty-eight million, four hundred twenty thousand, three hundred eleven".