385518340 has 24 divisors (see below), whose sum is σ = 810698112. Its totient is φ = 153996000.

The previous prime is 385518337. The next prime is 385518347. The reversal of 385518340 is 43815583.

It is a self number, because there is not a number n which added to its sum of digits gives 385518340.

It is not an unprimeable number, because it can be changed into a prime (385518347) 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, 2187 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (33779088).

Almost surely, 2^385518340 is an apocalyptic number.

It is an amenable number.

385518340 is an abundant number, since it is smaller than the sum of its proper divisors (425179772).

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

385518340 is a wasteful number, since it uses less digits than its factorization.

385518340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26427 (or 26425 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 385518340 is about 19634.6209538152. The cubic root of 385518340 is about 727.8049657673.

The spelling of 385518340 in words is "three hundred eighty-five million, five hundred eighteen thousand, three hundred forty".