30203232240 has 160 divisors (see below), whose sum is σ = 100252779840. Its totient is φ = 7495155712.

The previous prime is 30203232229. The next prime is 30203232259. The reversal of 30203232240 is 4223230203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321532 + ... + 404708.

It is an arithmetic number, because the mean of its divisors is an integer number (626579874).

Almost surely, 2^30203232240 is an apocalyptic number.

30203232240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30203232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50126389920).

30203232240 is an abundant number, since it is smaller than the sum of its proper divisors (70049547600).

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

30203232240 is a wasteful number, since it uses less digits than its factorization.

30203232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83299 (or 83293 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 30203232240 its reverse (4223230203), we get a palindrome (34426462443).

The spelling of 30203232240 in words is "thirty billion, two hundred three million, two hundred thirty-two thousand, two hundred forty".