43931256202242 has 120 divisors (see below), whose sum is σ = 99500975517636. Its totient is φ = 14486621174784.

The previous prime is 43931256202241. The next prime is 43931256202277. The reversal of 43931256202242 is 24220265213934.

43931256202242 is a `hidden beast` number, since 4 + 3 + 9 + 3 + 12 + 5 + 620 + 2 + 2 + 4 + 2 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 43520527746081 + 410728456161 = 6597009^2 + 640881^2 .

It is not an unprimeable number, because it can be changed into a prime (43931256202241) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1905321178 + ... + 1905344234.

Almost surely, 2^{43931256202242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43931256202242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49750487758818).

43931256202242 is an abundant number, since it is smaller than the sum of its proper divisors (55569719315394).

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

43931256202242 is a wasteful number, since it uses less digits than its factorization.

43931256202242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23794 (or 23492 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 43931256202242 in words is "forty-three trillion, nine hundred thirty-one billion, two hundred fifty-six million, two hundred two thousand, two hundred forty-two".