385063770 has 128 divisors (see below), whose sum is σ = 1204471296. Its totient is φ = 76455936.

The previous prime is 385063733. The next prime is 385063793. The reversal of 385063770 is 77360583.

It is a super-2 number, since 2×385063770² = 296548213933225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42262 + ... + 50558.

It is an arithmetic number, because the mean of its divisors is an integer number (9409932).

Almost surely, 2^385063770 is an apocalyptic number.

385063770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 385063770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602235648).

385063770 is an abundant number, since it is smaller than the sum of its proper divisors (819407526).

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

385063770 is a wasteful number, since it uses less digits than its factorization.

385063770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8344.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 385063770 is about 19623.0418131339. The cubic root of 385063770 is about 727.5187983003.

The spelling of 385063770 in words is "three hundred eighty-five million, sixty-three thousand, seven hundred seventy".