305235024240 has 40 divisors (see below), whose sum is σ = 946228575888. Its totient is φ = 81396006400.

The previous prime is 305235024223. The next prime is 305235024271. The reversal of 305235024240 is 42420532503.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 305235024198 and 305235024207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635906061 + ... + 635906540.

Almost surely, 2^305235024240 is an apocalyptic number.

305235024240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305235024240 is an abundant number, since it is smaller than the sum of its proper divisors (640993551648).

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

305235024240 is a wasteful number, since it uses less digits than its factorization.

305235024240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271812617 (or 1271812611 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 305235024240 its reverse (42420532503), we get a palindrome (347655556743).

The spelling of 305235024240 in words is "three hundred five billion, two hundred thirty-five million, twenty-four thousand, two hundred forty".