380538555 has 32 divisors (see below), whose sum is σ = 654566400. Its totient is φ = 188174592.

The previous prime is 380538553. The next prime is 380538559. The reversal of 380538555 is 555835083.

380538555 = T₄₀₉₀ + T₄₀₉₁ + ... + T₄₁₃₄.

It is not a de Polignac number, because 380538555 - 2¹ = 380538553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380538553) 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, 810 + ... + 27599.

It is an arithmetic number, because the mean of its divisors is an integer number (20455200).

Almost surely, 2^380538555 is an apocalyptic number.

380538555 is a deficient number, since it is larger than the sum of its proper divisors (274027845).

380538555 is a wasteful number, since it uses less digits than its factorization.

380538555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28483.

The product of its (nonzero) digits is 360000, while the sum is 42.

The square root of 380538555 is about 19507.3974430215. The cubic root of 380538555 is about 724.6576616027.

The spelling of 380538555 in words is "three hundred eighty million, five hundred thirty-eight thousand, five hundred fifty-five".