385478445 has 32 divisors (see below), whose sum is σ = 688495104. Its totient is φ = 182548800.

The previous prime is 385478341. The next prime is 385478449. The reversal of 385478445 is 544874583.

It is not a de Polignac number, because 385478445 - 2⁹ = 385477933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385478394 and 385478403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385478449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20071 + ... + 34260.

It is an arithmetic number, because the mean of its divisors is an integer number (21515472).

Almost surely, 2^385478445 is an apocalyptic number.

It is an amenable number.

385478445 is a deficient number, since it is larger than the sum of its proper divisors (303016659).

385478445 is a wasteful number, since it uses less digits than its factorization.

385478445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54393.

The product of its digits is 2150400, while the sum is 48.

The square root of 385478445 is about 19633.6049924613. The cubic root of 385478445 is about 727.7798594989.

The spelling of 385478445 in words is "three hundred eighty-five million, four hundred seventy-eight thousand, four hundred forty-five".