38406365 has 12 divisors (see below), whose sum is σ = 47628252. Its totient is φ = 29730240.

The previous prime is 38406317. The next prime is 38406373. The reversal of 38406365 is 56360483.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 30448324 = 2821^2 + 5518^2 .

It is not a de Polignac number, because 38406365 - 2¹⁸ = 38144221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809 + ... + 8801.

It is an arithmetic number, because the mean of its divisors is an integer number (3969021).

Almost surely, 2^38406365 is an apocalyptic number.

It is an amenable number.

38406365 is a deficient number, since it is larger than the sum of its proper divisors (9221887).

38406365 is an equidigital number, since it uses as much as digits as its factorization.

38406365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060 (or 8029 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 38406365 is about 6197.2869063809. The cubic root of 38406365 is about 337.3917055385.

The spelling of 38406365 in words is "thirty-eight million, four hundred six thousand, three hundred sixty-five".