385729952 has 24 divisors (see below), whose sum is σ = 777069216. Its totient is φ = 188379072.

The previous prime is 385729951. The next prime is 385729961. The reversal of 385729952 is 259927583.

It is a self number, because there is not a number n which added to its sum of digits gives 385729952.

It is not an unprimeable number, because it can be changed into a prime (385729951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138788 + ... + 141539.

It is an arithmetic number, because the mean of its divisors is an integer number (32377884).

Almost surely, 2^385729952 is an apocalyptic number.

385729952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

385729952 is an abundant number, since it is smaller than the sum of its proper divisors (391339264).

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

385729952 is a wasteful number, since it uses less digits than its factorization.

385729952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280380 (or 280372 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The square root of 385729952 is about 19640.0089613014. The cubic root of 385729952 is about 727.9381060772.

The spelling of 385729952 in words is "three hundred eighty-five million, seven hundred twenty-nine thousand, nine hundred fifty-two".