305353534140 has 144 divisors (see below), whose sum is σ = 973396071648. Its totient is φ = 77384305152.

The previous prime is 305353534139. The next prime is 305353534159. The reversal of 305353534140 is 41435353503.

305353534140 is a `hidden beast` number, since 3 + 0 + 53 + 535 + 34 + 1 + 40 = 666.

305353534140 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 305353534095 and 305353534104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246747 + ... + 819506.

It is an arithmetic number, because the mean of its divisors is an integer number (6759694942).

Almost surely, 2^305353534140 is an apocalyptic number.

305353534140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305353534140 is an abundant number, since it is smaller than the sum of its proper divisors (668042537508).

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

305353534140 is a wasteful number, since it uses less digits than its factorization.

305353534140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066348 (or 1066343 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 305353534140 its reverse (41435353503), we get a palindrome (346788887643).

The spelling of 305353534140 in words is "three hundred five billion, three hundred fifty-three million, five hundred thirty-four thousand, one hundred forty".