41987840 has 36 divisors (see below), whose sum is σ = 100577064. Its totient is φ = 16794624.

The previous prime is 41987839. The next prime is 41987843. The reversal of 41987840 is 4878914.

It is a happy number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41987843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15122 + ... + 17681.

Almost surely, 2^41987840 is an apocalyptic number.

41987840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41987840 is an abundant number, since it is smaller than the sum of its proper divisors (58589224).

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

41987840 is an equidigital number, since it uses as much as digits as its factorization.

41987840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32824 (or 32810 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 41987840 is about 6479.8024661250. The cubic root of 41987840 is about 347.5691148348.

The spelling of 41987840 in words is "forty-one million, nine hundred eighty-seven thousand, eight hundred forty".