30001220440 has 32 divisors (see below), whose sum is σ = 67676310000. Its totient is φ = 11969632384.

The previous prime is 30001220387. The next prime is 30001220497. The reversal of 30001220440 is 4402210003.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 948490 + ... + 979609.

Almost surely, 2^30001220440 is an apocalyptic number.

It is an amenable number.

30001220440 is an abundant number, since it is smaller than the sum of its proper divisors (37675089560).

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

30001220440 is a wasteful number, since it uses less digits than its factorization.

30001220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928499 (or 1928495 counting only the distinct ones).

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

Adding to 30001220440 its reverse (4402210003), we get a palindrome (34403430443).

The spelling of 30001220440 in words is "thirty billion, one million, two hundred twenty thousand, four hundred forty".