380856190 has 32 divisors (see below), whose sum is σ = 805394016. Its totient is φ = 127839360.

The previous prime is 380856127. The next prime is 380856191. The reversal of 380856190 is 91658083.

It is a happy number.

It is a super-2 number, since 2×380856190² = 290102874922632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380856191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131737 + ... + 134596.

It is an arithmetic number, because the mean of its divisors is an integer number (25168563).

Almost surely, 2^380856190 is an apocalyptic number.

380856190 is an abundant number, since it is smaller than the sum of its proper divisors (424537826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380856190 is a wasteful number, since it uses less digits than its factorization.

380856190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266364.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 380856190 is about 19515.5371435172. The cubic root of 380856190 is about 724.8592291095.

The spelling of 380856190 in words is "three hundred eighty million, eight hundred fifty-six thousand, one hundred ninety".