385430545 has 16 divisors (see below), whose sum is σ = 501672528. Its totient is φ = 283125760.

The previous prime is 385430509. The next prime is 385430569. The reversal of 385430545 is 545034583.

It can be written as a sum of positive squares in 8 ways, for example, as 3775249 + 381655296 = 1943^2 + 19536^2 .

It is not a de Polignac number, because 385430545 - 2²¹ = 383333393 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51814 + ... + 58783.

It is an arithmetic number, because the mean of its divisors is an integer number (31354533).

Almost surely, 2^385430545 is an apocalyptic number.

It is an amenable number.

385430545 is a deficient number, since it is larger than the sum of its proper divisors (116241983).

385430545 is a wasteful number, since it uses less digits than its factorization.

385430545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110660.

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 385430545 is about 19632.3851072660. The cubic root of 385430545 is about 727.7497133262.

The spelling of 385430545 in words is "three hundred eighty-five million, four hundred thirty thousand, five hundred forty-five".