30075402240 has 432 divisors, whose sum is σ = 112929321960. Its totient is φ = 7399342080.

The previous prime is 30075402197. The next prime is 30075402281. The reversal of 30075402240 is 4220457003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15574075 + ... + 15576005.

Almost surely, 2^30075402240 is an apocalyptic number.

30075402240 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 30075402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56464660980).

30075402240 is an abundant number, since it is smaller than the sum of its proper divisors (82853919720).

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

30075402240 is a wasteful number, since it uses less digits than its factorization.

30075402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

Adding to 30075402240 its reverse (4220457003), we get a palindrome (34295859243).

The spelling of 30075402240 in words is "thirty billion, seventy-five million, four hundred two thousand, two hundred forty".