41987640 has 64 divisors (see below), whose sum is σ = 130037760. Its totient is φ = 10834560.

The previous prime is 41987611. The next prime is 41987657. The reversal of 41987640 is 4678914.

It is a happy number.

It is a congruent number.

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, 1924 + ... + 9363.

It is an arithmetic number, because the mean of its divisors is an integer number (2031840).

Almost surely, 2^41987640 is an apocalyptic number.

41987640 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 41987640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65018880).

41987640 is an abundant number, since it is smaller than the sum of its proper divisors (88050120).

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

41987640 is a wasteful number, since it uses less digits than its factorization.

41987640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 41987640 is about 6479.7870335374. The cubic root of 41987640 is about 347.5685629771.

The spelling of 41987640 in words is "forty-one million, nine hundred eighty-seven thousand, six hundred forty".