30712227840 has 576 divisors, whose sum is σ = 127052452800. Its totient is φ = 7016841216.

The previous prime is 30712227839. The next prime is 30712227853. The reversal of 30712227840 is 4872221703.

It is a tau number, because it is divible by the number of its divisors (576).

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 = 30712227795 and 30712227804.

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, 13546387 + ... + 13548653.

It is an arithmetic number, because the mean of its divisors is an integer number (220577175).

Almost surely, 2^30712227840 is an apocalyptic number.

30712227840 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 30712227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63526226400).

30712227840 is an abundant number, since it is smaller than the sum of its proper divisors (96340224960).

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

30712227840 is a wasteful number, since it uses less digits than its factorization.

30712227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317 (or 2284 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 30712227840 in words is "thirty billion, seven hundred twelve million, two hundred twenty-seven thousand, eight hundred forty".