385657012340 has 12 divisors (see below), whose sum is σ = 809879725956. Its totient is φ = 154262804928.

The previous prime is 385657012303. The next prime is 385657012381. The reversal of 385657012340 is 43210756583.

It can be written as a sum of positive squares in 2 ways, for example, as 101702312464 + 283954699876 = 318908^2 + 532874^2 .

It is a junction number, because it is equal to n+sod(n) for n = 385657012291 and 385657012300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9641425289 + ... + 9641425328.

It is an arithmetic number, because the mean of its divisors is an integer number (67489977163).

Almost surely, 2^385657012340 is an apocalyptic number.

It is an amenable number.

385657012340 is an abundant number, since it is smaller than the sum of its proper divisors (424222713616).

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

385657012340 is a wasteful number, since it uses less digits than its factorization.

385657012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19282850626 (or 19282850624 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 385657012340 in words is "three hundred eighty-five billion, six hundred fifty-seven million, twelve thousand, three hundred forty".