380865535 has 16 divisors (see below), whose sum is σ = 499537152. Its totient is φ = 277516800.

The previous prime is 380865493. The next prime is 380865539. The reversal of 380865535 is 535568083.

It is a de Polignac number, because none of the positive numbers 2^k-380865535 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380865491 and 380865500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380865539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69636 + ... + 74905.

It is an arithmetic number, because the mean of its divisors is an integer number (31221072).

Almost surely, 2^380865535 is an apocalyptic number.

380865535 is a deficient number, since it is larger than the sum of its proper divisors (118671617).

380865535 is a wasteful number, since it uses less digits than its factorization.

380865535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144594.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 380865535 is about 19515.7765666652. The cubic root of 380865535 is about 724.8651576413.

The spelling of 380865535 in words is "three hundred eighty million, eight hundred sixty-five thousand, five hundred thirty-five".