30032040440 has 32 divisors (see below), whose sum is σ = 67776266160. Its totient is φ = 11976518400.

The previous prime is 30032040419. The next prime is 30032040457. The reversal of 30032040440 is 4404023003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1120901 + ... + 1147380.

Almost surely, 2^30032040440 is an apocalyptic number.

It is an amenable number.

30032040440 is an abundant number, since it is smaller than the sum of its proper divisors (37744225720).

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

30032040440 is a wasteful number, since it uses less digits than its factorization.

30032040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268623 (or 2268619 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 30032040440 its reverse (4404023003), we get a palindrome (34436063443).

The spelling of 30032040440 in words is "thirty billion, thirty-two million, forty thousand, four hundred forty".