1043641020240 has 800 divisors, whose sum is σ = 4473809657856. Its totient is φ = 219574333440.

The previous prime is 1043641020211. The next prime is 1043641020263. The reversal of 1043641020240 is 420201463401.

It is a happy number.

1043641020240 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 6 + 410 + 2 + 0 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 225845130 + ... + 225849750.

Almost surely, 2^{1043641020240} is an apocalyptic number.

1043641020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043641020240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236904828928).

1043641020240 is an abundant number, since it is smaller than the sum of its proper divisors (3430168637616).

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

1043641020240 is a wasteful number, since it uses less digits than its factorization.

1043641020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5034 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1043641020240 its reverse (420201463401), we get a palindrome (1463842483641).

The spelling of 1043641020240 in words is "one trillion, forty-three billion, six hundred forty-one million, twenty thousand, two hundred forty".