41865640 has 16 divisors (see below), whose sum is σ = 94197780. Its totient is φ = 16746240.

The previous prime is 41865631. The next prime is 41865641. The reversal of 41865640 is 4656814.

It can be written as a sum of positive squares in 2 ways, for example, as 39413284 + 2452356 = 6278^2 + 1566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 41865596 and 41865605.

It is not an unprimeable number, because it can be changed into a prime (41865641) 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, 523281 + ... + 523360.

Almost surely, 2^41865640 is an apocalyptic number.

41865640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41865640 is an abundant number, since it is smaller than the sum of its proper divisors (52332140).

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

41865640 is a wasteful number, since it uses less digits than its factorization.

41865640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046652 (or 1046648 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 41865640 is about 6470.3662956590. The cubic root of 41865640 is about 347.2316027001.

The spelling of 41865640 in words is "forty-one million, eight hundred sixty-five thousand, six hundred forty".