38455765 has 8 divisors (see below), whose sum is σ = 47394360. Its totient is φ = 29932992.

The previous prime is 38455757. The next prime is 38455777. The reversal of 38455765 is 56755483.

38455765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14190289 + 24265476 = 3767^2 + 4926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38455765 - 2³ = 38455757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103750 + ... + 104119.

It is an arithmetic number, because the mean of its divisors is an integer number (5924295).

Almost surely, 2^38455765 is an apocalyptic number.

It is an amenable number.

38455765 is a deficient number, since it is larger than the sum of its proper divisors (8938595).

38455765 is a wasteful number, since it uses less digits than its factorization.

38455765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207911.

The product of its digits is 504000, while the sum is 43.

The square root of 38455765 is about 6201.2712406409. The cubic root of 38455765 is about 337.5362997079.

The spelling of 38455765 in words is "thirty-eight million, four hundred fifty-five thousand, seven hundred sixty-five".