30057272640 has 672 divisors, whose sum is σ = 114000466944. Its totient is φ = 7524679680.

The previous prime is 30057272627. The next prime is 30057272647. The reversal of 30057272640 is 4627275003.

It is a happy number.

30057272640 is a `hidden beast` number, since 3 + 0 + 0 + 5 + 7 + 2 + 7 + 2 + 640 = 666.

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 = 30057272595 and 30057272604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30057272647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89190552 + ... + 89190888.

It is an arithmetic number, because the mean of its divisors is an integer number (169643552).

Almost surely, 2^30057272640 is an apocalyptic number.

30057272640 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 30057272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57000233472).

30057272640 is an abundant number, since it is smaller than the sum of its proper divisors (83943194304).

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

30057272640 is a wasteful number, since it uses less digits than its factorization.

30057272640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 30057272640 in words is "thirty billion, fifty-seven million, two hundred seventy-two thousand, six hundred forty".