30421000240 has 40 divisors (see below), whose sum is σ = 70744364928. Its totient is φ = 12165726720.

The previous prime is 30421000213. The next prime is 30421000249. The reversal of 30421000240 is 4200012403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30421000249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347124 + ... + 425836.

Almost surely, 2^30421000240 is an apocalyptic number.

It is an amenable number.

30421000240 is an abundant number, since it is smaller than the sum of its proper divisors (40323364688).

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

30421000240 is a wasteful number, since it uses less digits than its factorization.

30421000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83557 (or 83551 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30421000240 its reverse (4200012403), we get a palindrome (34621012643).

The spelling of 30421000240 in words is "thirty billion, four hundred twenty-one million, two hundred forty", and thus it is an aban number.