380842856 has 8 divisors (see below), whose sum is σ = 714080370. Its totient is φ = 190421424.

The previous prime is 380842831. The next prime is 380842871. The reversal of 380842856 is 658248083.

It can be written as a sum of positive squares in only one way, i.e., 267845956 + 112996900 = 16366^2 + 10630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23802671 + ... + 23802686.

Almost surely, 2^380842856 is an apocalyptic number.

It is an amenable number.

380842856 is a deficient number, since it is larger than the sum of its proper divisors (333237514).

380842856 is a wasteful number, since it uses less digits than its factorization.

380842856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47605363 (or 47605359 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 380842856 is about 19515.1955152901. The cubic root of 380842856 is about 724.8507697610.

It can be divided in two parts, 3808 and 42856, that added together give a palindrome (46664).

The spelling of 380842856 in words is "three hundred eighty million, eight hundred forty-two thousand, eight hundred fifty-six".