431440243544010 has 128 divisors (see below), whose sum is σ = 1102544284262400. Its totient is φ = 107672879191040.

The previous prime is 431440243544003. The next prime is 431440243544041. The reversal of 431440243544010 is 10445342044134.

It is a super-2 number, since 2×431440243544010² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431440243544010.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2087790271 + ... + 2087996909.

It is an arithmetic number, because the mean of its divisors is an integer number (8613627220800).

Almost surely, 2^{431440243544010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431440243544010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551272142131200).

431440243544010 is an abundant number, since it is smaller than the sum of its proper divisors (671104040718390).

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

431440243544010 is a wasteful number, since it uses less digits than its factorization.

431440243544010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229716.

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 431440243544010 its reverse (10445342044134), we get a palindrome (441885585588144).

The spelling of 431440243544010 in words is "four hundred thirty-one trillion, four hundred forty billion, two hundred forty-three million, five hundred forty-four thousand, ten".