380038665 has 32 divisors (see below), whose sum is σ = 641203200. Its totient is φ = 191678400.

The previous prime is 380038651. The next prime is 380038667. The reversal of 380038665 is 566830083.

380038665 is a nontrivial binomial coefficient, being equal to C(27570, 2).

It is not a de Polignac number, because 380038665 - 2⁷ = 380038537 is a prime.

380038665 is a modest number, since divided by 38665 gives 380 as remainder.

It is not an unprimeable number, because it can be changed into a prime (380038667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261190 + ... + 262640.

It is an arithmetic number, because the mean of its divisors is an integer number (20037600).

Almost surely, 2^380038665 is an apocalyptic number.

380038665 is the 27569-th triangular number and also the 13785-th hexagonal number.

It is an amenable number.

380038665 is a deficient number, since it is larger than the sum of its proper divisors (261164535).

380038665 is a wasteful number, since it uses less digits than its factorization.

380038665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 380038665 is about 19494.5804007165. The cubic root of 380038665 is about 724.3402098833.

The spelling of 380038665 in words is "three hundred eighty million, thirty-eight thousand, six hundred sixty-five".