385243249530 has 32 divisors (see below), whose sum is σ = 929277131904. Its totient is φ = 102210051776.

The previous prime is 385243249513. The next prime is 385243249537. The reversal of 385243249530 is 35942342583.

It is a happy number.

It is a super-2 number, since 2×385243249530² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 385243249530.

It is not an unprimeable number, because it can be changed into a prime (385243249537) 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, 32586582 + ... + 32598401.

It is an arithmetic number, because the mean of its divisors is an integer number (29039910372).

Almost surely, 2^385243249530 is an apocalyptic number.

385243249530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385243249530 is an abundant number, since it is smaller than the sum of its proper divisors (544033882374).

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

385243249530 is a wasteful number, since it uses less digits than its factorization.

385243249530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65185190.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 385243249530 in words is "three hundred eighty-five billion, two hundred forty-three million, two hundred forty-nine thousand, five hundred thirty".