385287472 has 40 divisors (see below), whose sum is σ = 787846400. Its totient is φ = 182025792.

The previous prime is 385287457. The next prime is 385287479. The reversal of 385287472 is 274782583.

It is not an unprimeable number, because it can be changed into a prime (385287479) 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, 132013 + ... + 134899.

It is an arithmetic number, because the mean of its divisors is an integer number (19696160).

Almost surely, 2^385287472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385287472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393923200).

385287472 is an abundant number, since it is smaller than the sum of its proper divisors (402558928).

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

385287472 is a wasteful number, since it uses less digits than its factorization.

385287472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353 (or 3347 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 385287472 is about 19628.7409682842. The cubic root of 385287472 is about 727.6596545403.

The spelling of 385287472 in words is "three hundred eighty-five million, two hundred eighty-seven thousand, four hundred seventy-two".