385881051 has 16 divisors (see below), whose sum is σ = 565136640. Its totient is φ = 233117280.

The previous prime is 385881019. The next prime is 385881071. The reversal of 385881051 is 150188583.

It is not a de Polignac number, because 385881051 - 2⁵ = 385881019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385881071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145860 + ... + 148481.

It is an arithmetic number, because the mean of its divisors is an integer number (35321040).

Almost surely, 2^385881051 is an apocalyptic number.

385881051 is a deficient number, since it is larger than the sum of its proper divisors (179255589).

385881051 is a wasteful number, since it uses less digits than its factorization.

385881051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294386.

The product of its (nonzero) digits is 38400, while the sum is 39.

The square root of 385881051 is about 19643.8552987951. The cubic root of 385881051 is about 728.0331435168.

The spelling of 385881051 in words is "three hundred eighty-five million, eight hundred eighty-one thousand, fifty-one".