385923444 has 12 divisors (see below), whose sum is σ = 900488064. Its totient is φ = 128641144.

The previous prime is 385923413. The next prime is 385923451. The reversal of 385923444 is 444329583.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×385923444² = 297873809257642272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385923396 and 385923405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16080132 + ... + 16080155.

It is an arithmetic number, because the mean of its divisors is an integer number (75040672).

Almost surely, 2^385923444 is an apocalyptic number.

It is an amenable number.

385923444 is an abundant number, since it is smaller than the sum of its proper divisors (514564620).

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

385923444 is a wasteful number, since it uses less digits than its factorization.

385923444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32160294 (or 32160292 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 385923444 is about 19644.9343088746. The cubic root of 385923444 is about 728.0598031820.

The spelling of 385923444 in words is "three hundred eighty-five million, nine hundred twenty-three thousand, four hundred forty-four".