380718765 has 64 divisors (see below), whose sum is σ = 776294400. Its totient is φ = 173420352.

The previous prime is 380718761. The next prime is 380718773. The reversal of 380718765 is 567817083.

It is not a de Polignac number, because 380718765 - 2² = 380718761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 380718765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380718761) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 357624 + ... + 358686.

It is an arithmetic number, because the mean of its divisors is an integer number (12129600).

Almost surely, 2^380718765 is an apocalyptic number.

380718765 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380718765 is an abundant number, since it is smaller than the sum of its proper divisors (395575635).

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

380718765 is a wasteful number, since it uses less digits than its factorization.

380718765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 380718765 is about 19512.0159132776. The cubic root of 380718765 is about 724.7720345499.

The spelling of 380718765 in words is "three hundred eighty million, seven hundred eighteen thousand, seven hundred sixty-five".