41440140 has 192 divisors, whose sum is σ = 155366400. Its totient is φ = 8957952.

The previous prime is 41440123. The next prime is 41440141. The reversal of 41440140 is 4104414.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (41440141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71532 + ... + 72108.

It is an arithmetic number, because the mean of its divisors is an integer number (809200).

Almost surely, 2^41440140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41440140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77683200).

41440140 is an abundant number, since it is smaller than the sum of its proper divisors (113926260).

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

41440140 is a wasteful number, since it uses less digits than its factorization.

41440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 41440140 is about 6437.4016497342. The cubic root of 41440140 is about 346.0512359111.

Adding to 41440140 its reverse (4104414), we get a palindrome (45544554).

The spelling of 41440140 in words is "forty-one million, four hundred forty thousand, one hundred forty".