31440044004030 has 48 divisors (see below), whose sum is σ = 82586837262384. Its totient is φ = 8297578621440.

The previous prime is 31440044003989. The next prime is 31440044004049. The reversal of 31440044004030 is 3040044004413.

It is a junction number, because it is equal to n+sod(n) for n = 31440044003985 and 31440044004003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1800681076 + ... + 1800698535.

It is an arithmetic number, because the mean of its divisors is an integer number (1720559109633).

Almost surely, 2^{31440044004030} is an apocalyptic number.

31440044004030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31440044004030 is an abundant number, since it is smaller than the sum of its proper divisors (51146793258354).

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

31440044004030 is a wasteful number, since it uses less digits than its factorization.

31440044004030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601379721 (or 3601379718 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 31440044004030 its reverse (3040044004413), we get a palindrome (34480088008443).

The spelling of 31440044004030 in words is "thirty-one trillion, four hundred forty billion, forty-four million, four thousand, thirty".