380777755 has 8 divisors (see below), whose sum is σ = 457096752. Its totient is φ = 304513248.

The previous prime is 380777741. The next prime is 380777759. The reversal of 380777755 is 557777083.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380777755 - 2¹³ = 380769563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380777699 and 380777708.

It is not an unprimeable number, because it can be changed into a prime (380777759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3777 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (57137094).

Almost surely, 2^380777755 is an apocalyptic number.

380777755 is a deficient number, since it is larger than the sum of its proper divisors (76318997).

380777755 is a wasteful number, since it uses less digits than its factorization.

380777755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27245.

The product of its (nonzero) digits is 1440600, while the sum is 49.

The square root of 380777755 is about 19513.5274873612. The cubic root of 380777755 is about 724.8094655867.

The spelling of 380777755 in words is "three hundred eighty million, seven hundred seventy-seven thousand, seven hundred fifty-five".