380761812 has 18 divisors (see below), whose sum is σ = 962481338. Its totient is φ = 126920592.

The previous prime is 380761789. The next prime is 380761831. The reversal of 380761812 is 218167083.

380761812 is a `hidden beast` number, since 38 + 0 + 7 + 618 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 202379076 + 178382736 = 14226^2 + 13356^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 10576717 = 380761812 / (3 + 8 + 0 + 7 + 6 + 1 + 8 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5288323 + ... + 5288394.

Almost surely, 2^380761812 is an apocalyptic number.

It is an amenable number.

380761812 is an abundant number, since it is smaller than the sum of its proper divisors (581719526).

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

380761812 is a wasteful number, since it uses less digits than its factorization.

380761812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576727 (or 10576722 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 380761812 is about 19513.1189716047. The cubic root of 380761812 is about 724.7993496259.

The spelling of 380761812 in words is "three hundred eighty million, seven hundred sixty-one thousand, eight hundred twelve".