41021263440 has 120 divisors (see below), whose sum is σ = 137799972648. Its totient is φ = 10936074240.

The previous prime is 41021263403. The next prime is 41021263441. The reversal of 41021263440 is 4436212014.

It is a happy number.

41021263440 is a `hidden beast` number, since 4 + 1 + 0 + 21 + 2 + 634 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10001600064 + 31019663376 = 100008^2 + 176124^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41021263441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4690752 + ... + 4699488.

Almost surely, 2^41021263440 is an apocalyptic number.

41021263440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41021263440 is an abundant number, since it is smaller than the sum of its proper divisors (96778709208).

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

41021263440 is a wasteful number, since it uses less digits than its factorization.

41021263440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277 (or 15268 counting only the distinct ones).

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

Adding to 41021263440 its reverse (4436212014), we get a palindrome (45457475454).

The spelling of 41021263440 in words is "forty-one billion, twenty-one million, two hundred sixty-three thousand, four hundred forty".