385805901 has 16 divisors (see below), whose sum is σ = 560994560. Its totient is φ = 234411840.

The previous prime is 385805869. The next prime is 385805909. The reversal of 385805901 is 109508583.

It is not a de Polignac number, because 385805901 - 2⁵ = 385805869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 385805901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385805909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59530 + ... + 65691.

It is an arithmetic number, because the mean of its divisors is an integer number (35062160).

Almost surely, 2^385805901 is an apocalyptic number.

It is an amenable number.

385805901 is a deficient number, since it is larger than the sum of its proper divisors (175188659).

385805901 is a wasteful number, since it uses less digits than its factorization.

385805901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125316.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 385805901 is about 19641.9423937654. The cubic root of 385805901 is about 727.9858791740.

The spelling of 385805901 in words is "three hundred eighty-five million, eight hundred five thousand, nine hundred one".