30021672240 has 960 divisors, whose sum is σ = 128357498880. Its totient is φ = 6131220480.

The previous prime is 30021672229. The next prime is 30021672283. The reversal of 30021672240 is 4227612003.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 236391057 + ... + 236391183.

It is an arithmetic number, because the mean of its divisors is an integer number (133705728).

Almost surely, 2^30021672240 is an apocalyptic number.

30021672240 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 30021672240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64178749440).

30021672240 is an abundant number, since it is smaller than the sum of its proper divisors (98335826640).

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

30021672240 is a wasteful number, since it uses less digits than its factorization.

30021672240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 30021672240 in words is "thirty billion, twenty-one million, six hundred seventy-two thousand, two hundred forty".