385044531 has 8 divisors (see below), whose sum is σ = 513483984. Its totient is φ = 256650720.

The previous prime is 385044497. The next prime is 385044551. The reversal of 385044531 is 135440583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385044531 - 2⁶ = 385044467 is a prime.

It is a super-2 number, since 2×385044531² = 296518581706019922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 385044492 and 385044501.

It is not an unprimeable number, because it can be changed into a prime (385044551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23805 + ... + 36561.

It is an arithmetic number, because the mean of its divisors is an integer number (64185498).

Almost surely, 2^385044531 is an apocalyptic number.

385044531 is a deficient number, since it is larger than the sum of its proper divisors (128439453).

385044531 is a wasteful number, since it uses less digits than its factorization.

385044531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22821.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 385044531 is about 19622.5515924917. The cubic root of 385044531 is about 727.5066817208.

The spelling of 385044531 in words is "three hundred eighty-five million, forty-four thousand, five hundred thirty-one".