385448533 has 4 divisors (see below), whose sum is σ = 385496800. Its totient is φ = 385400268.

The previous prime is 385448527. The next prime is 385448549. The reversal of 385448533 is 335844583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 335844583 = 4679 ⋅71777.

It is a cyclic number.

It is not a de Polignac number, because 385448533 - 2⁵ = 385448501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385448533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385448233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8985 + ... + 29182.

It is an arithmetic number, because the mean of its divisors is an integer number (96374200).

Almost surely, 2^385448533 is an apocalyptic number.

It is an amenable number.

385448533 is a deficient number, since it is larger than the sum of its proper divisors (48267).

385448533 is a wasteful number, since it uses less digits than its factorization.

385448533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48266.

The product of its digits is 691200, while the sum is 43.

The square root of 385448533 is about 19632.8432225187. The cubic root of 385448533 is about 727.7610344824.

The spelling of 385448533 in words is "three hundred eighty-five million, four hundred forty-eight thousand, five hundred thirty-three".