41440971840 has 112 divisors (see below), whose sum is σ = 132121777920. Its totient is φ = 11005009920.

The previous prime is 41440971821. The next prime is 41440971857. The reversal of 41440971840 is 4817904414.

It is a junction number, because it is equal to n+sod(n) for n = 41440971792 and 41440971801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141801 + ... + 320919.

Almost surely, 2^41440971840 is an apocalyptic number.

41440971840 is a gapful number since it is divisible by the number (40) 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 41440971840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66060888960).

41440971840 is an abundant number, since it is smaller than the sum of its proper divisors (90680806080).

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

41440971840 is a wasteful number, since it uses less digits than its factorization.

41440971840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179380 (or 179370 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 41440971840 in words is "forty-one billion, four hundred forty million, nine hundred seventy-one thousand, eight hundred forty".