385140849 has 32 divisors (see below), whose sum is σ = 557798400. Its totient is φ = 235609920.

The previous prime is 385140841. The next prime is 385140859. The reversal of 385140849 is 948041583.

It is not a de Polignac number, because 385140849 - 2³ = 385140841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385140849.

It is not an unprimeable number, because it can be changed into a prime (385140841) 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, 237967 + ... + 239579.

It is an arithmetic number, because the mean of its divisors is an integer number (17431200).

Almost surely, 2^385140849 is an apocalyptic number.

It is an amenable number.

385140849 is a deficient number, since it is larger than the sum of its proper divisors (172657551).

385140849 is a wasteful number, since it uses less digits than its factorization.

385140849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 385140849 is about 19625.0057070055. The cubic root of 385140849 is about 727.5673380354.

The spelling of 385140849 in words is "three hundred eighty-five million, one hundred forty thousand, eight hundred forty-nine".