385117049 has 4 divisors (see below), whose sum is σ = 385514640. Its totient is φ = 384719460.

The previous prime is 385117043. The next prime is 385117067. The reversal of 385117049 is 940711583.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385117049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385117043) 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, 197339 + ... + 199280.

It is an arithmetic number, because the mean of its divisors is an integer number (96378660).

Almost surely, 2^385117049 is an apocalyptic number.

It is an amenable number.

385117049 is a deficient number, since it is larger than the sum of its proper divisors (397591).

385117049 is an equidigital number, since it uses as much as digits as its factorization.

385117049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397590.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 385117049 is about 19624.3993283871. The cubic root of 385117049 is about 727.5523509129.

The spelling of 385117049 in words is "three hundred eighty-five million, one hundred seventeen thousand, forty-nine".