380086978 has 4 divisors (see below), whose sum is σ = 570130470. Its totient is φ = 190043488.

The previous prime is 380086961. The next prime is 380086991. The reversal of 380086978 is 879680083.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 379197729 + 889249 = 19473^2 + 943^2 .

It is a super-2 number, since 2×380086978² = 288932221690344968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95021743 + ... + 95021746.

Almost surely, 2^380086978 is an apocalyptic number.

380086978 is a deficient number, since it is larger than the sum of its proper divisors (190043492).

380086978 is a wasteful number, since it uses less digits than its factorization.

380086978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190043491.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 380086978 is about 19495.8195006006. The cubic root of 380086978 is about 724.3709028706.

The spelling of 380086978 in words is "three hundred eighty million, eighty-six thousand, nine hundred seventy-eight".