385441236 has 18 divisors (see below), whose sum is σ = 974309882. Its totient is φ = 128480400.

The previous prime is 385441229. The next prime is 385441253. The reversal of 385441236 is 632144583.

385441236 is a `hidden beast` number, since 385 + 4 + 41 + 236 = 666.

It can be written as a sum of positive squares in only one way, i.e., 329640336 + 55800900 = 18156^2 + 7470^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 10706701 = 385441236 / (3 + 8 + 5 + 4 + 4 + 1 + 2 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 385441236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5353315 + ... + 5353386.

Almost surely, 2^385441236 is an apocalyptic number.

385441236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

385441236 is an abundant number, since it is smaller than the sum of its proper divisors (588868646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385441236 is a wasteful number, since it uses less digits than its factorization.

385441236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706711 (or 10706706 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 385441236 is about 19632.6573850816. The cubic root of 385441236 is about 727.7564419923.

The spelling of 385441236 in words is "three hundred eighty-five million, four hundred forty-one thousand, two hundred thirty-six".