385847904 has 48 divisors (see below), whose sum is σ = 1090765872. Its totient is φ = 118722048.

The previous prime is 385847899. The next prime is 385847909. The reversal of 385847904 is 409748583.

It is an interprime number because it is at equal distance from previous prime (385847899) and next prime (385847909).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×385847904³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385847909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153339 + ... + 155834.

It is an arithmetic number, because the mean of its divisors is an integer number (22724289).

Almost surely, 2^385847904 is an apocalyptic number.

It is an amenable number.

385847904 is an abundant number, since it is smaller than the sum of its proper divisors (704917968).

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

385847904 is a wasteful number, since it uses less digits than its factorization.

385847904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309199 (or 309191 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 385847904 is about 19643.0115817305. The cubic root of 385847904 is about 728.0122970189.

The spelling of 385847904 in words is "three hundred eighty-five million, eight hundred forty-seven thousand, nine hundred four".