30202144440 has 64 divisors (see below), whose sum is σ = 97576164000. Its totient is φ = 7434373632.

The previous prime is 30202144439. The next prime is 30202144477. The reversal of 30202144440 is 4444120203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30202144440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9678615 + ... + 9681734.

Almost surely, 2^30202144440 is an apocalyptic number.

30202144440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30202144440 is an abundant number, since it is smaller than the sum of its proper divisors (67374019560).

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

30202144440 is a wasteful number, since it uses less digits than its factorization.

30202144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19360376 (or 19360372 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30202144440 its reverse (4444120203), we get a palindrome (34646264643).

The spelling of 30202144440 in words is "thirty billion, two hundred two million, one hundred forty-four thousand, four hundred forty".