385502340 has 48 divisors (see below), whose sum is σ = 1080273600. Its totient is φ = 102718080.

The previous prime is 385502339. The next prime is 385502357. The reversal of 385502340 is 43205583.

It is a super-2 number, since 2×385502340² = 297224108290951200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 385502298 and 385502307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124410 + ... + 127470.

It is an arithmetic number, because the mean of its divisors is an integer number (22505700).

Almost surely, 2^385502340 is an apocalyptic number.

385502340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385502340 is an abundant number, since it is smaller than the sum of its proper divisors (694771260).

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

385502340 is a wasteful number, since it uses less digits than its factorization.

385502340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 385502340 is about 19634.2135060206. The cubic root of 385502340 is about 727.7948970370.

The spelling of 385502340 in words is "three hundred eighty-five million, five hundred two thousand, three hundred forty".