31444244430 has 32 divisors (see below), whose sum is σ = 75887798400. Its totient is φ = 8338286112.

The previous prime is 31444244383. The next prime is 31444244459. The reversal of 31444244430 is 3444244413.

It is a junction number, because it is equal to n+sod(n) for n = 31444244391 and 31444244400.

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 15 ways as a sum of consecutive naturals, for example, 2922400 + ... + 2933139.

It is an arithmetic number, because the mean of its divisors is an integer number (2371493700).

Almost surely, 2^31444244430 is an apocalyptic number.

31444244430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31444244430 is an abundant number, since it is smaller than the sum of its proper divisors (44443553970).

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

31444244430 is a wasteful number, since it uses less digits than its factorization.

31444244430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5855728.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 31444244430 its reverse (3444244413), we get a palindrome (34888488843).

The spelling of 31444244430 in words is "thirty-one billion, four hundred forty-four million, two hundred forty-four thousand, four hundred thirty".