380752785 has 48 divisors (see below), whose sum is σ = 787420800. Its totient is φ = 174055392.

The previous prime is 380752751. The next prime is 380752817. The reversal of 380752785 is 587257083.

It is not a de Polignac number, because 380752785 - 2⁶ = 380752721 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 380752785.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22165 + ... + 35394.

It is an arithmetic number, because the mean of its divisors is an integer number (16404600).

Almost surely, 2^380752785 is an apocalyptic number.

380752785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380752785 is an abundant number, since it is smaller than the sum of its proper divisors (406668015).

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

380752785 is a wasteful number, since it uses less digits than its factorization.

380752785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57587 (or 57574 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 380752785 is about 19512.8876643105. The cubic root of 380752785 is about 724.7936217971.

The spelling of 380752785 in words is "three hundred eighty million, seven hundred fifty-two thousand, seven hundred eighty-five".