385858782 has 16 divisors (see below), whose sum is σ = 857464080. Its totient is φ = 128619576.

The previous prime is 385858777. The next prime is 385858789. The reversal of 385858782 is 287858583.

It is a happy number.

385858782 is a `hidden beast` number, since 3 + 8 + 58 + 587 + 8 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 7145533 = 385858782 / (3 + 8 + 5 + 8 + 5 + 8 + 7 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385858789) 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, 3572713 + ... + 3572820.

It is an arithmetic number, because the mean of its divisors is an integer number (53591505).

Almost surely, 2^385858782 is an apocalyptic number.

385858782 is an abundant number, since it is smaller than the sum of its proper divisors (471605298).

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

385858782 is a wasteful number, since it uses less digits than its factorization.

385858782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145544 (or 7145538 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The square root of 385858782 is about 19643.2884721474. The cubic root of 385858782 is about 728.0191384394.

The spelling of 385858782 in words is "three hundred eighty-five million, eight hundred fifty-eight thousand, seven hundred eighty-two".