30232373640 has 256 divisors, whose sum is σ = 115528550400. Its totient is φ = 6161412096.

The previous prime is 30232373617. The next prime is 30232373669. The reversal of 30232373640 is 4637323203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215607 + ... + 327033.

It is an arithmetic number, because the mean of its divisors is an integer number (451283400).

Almost surely, 2^30232373640 is an apocalyptic number.

30232373640 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 30232373640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57764275200).

30232373640 is an abundant number, since it is smaller than the sum of its proper divisors (85296176760).

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

30232373640 is a wasteful number, since it uses less digits than its factorization.

30232373640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111484 (or 111480 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 33.

Adding to 30232373640 its reverse (4637323203), we get a palindrome (34869696843).

The spelling of 30232373640 in words is "thirty billion, two hundred thirty-two million, three hundred seventy-three thousand, six hundred forty".