380665719 has 24 divisors (see below), whose sum is σ = 637258752. Its totient is φ = 214457040.

The previous prime is 380665693. The next prime is 380665723. The reversal of 380665719 is 917566083.

It is a happy number.

It is not a de Polignac number, because 380665719 - 2¹⁵ = 380632951 is a prime.

It is a super-2 number, since 2×380665719² = 289812779243573922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380665759) 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 23 ways as a sum of consecutive naturals, for example, 38079 + ... + 47024.

It is an arithmetic number, because the mean of its divisors is an integer number (26552448).

Almost surely, 2^380665719 is an apocalyptic number.

380665719 is a deficient number, since it is larger than the sum of its proper divisors (256593033).

380665719 is a wasteful number, since it uses less digits than its factorization.

380665719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85187 (or 85184 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 380665719 is about 19510.6565496910. The cubic root of 380665719 is about 724.7383718689.

The spelling of 380665719 in words is "three hundred eighty million, six hundred sixty-five thousand, seven hundred nineteen".