41090640 has 80 divisors (see below), whose sum is σ = 128021568. Its totient is φ = 10902528.

The previous prime is 41090633. The next prime is 41090657. The reversal of 41090640 is 4609014.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 41090640.

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, 74847 + ... + 75393.

Almost surely, 2^41090640 is an apocalyptic number.

41090640 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 41090640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64010784).

41090640 is an abundant number, since it is smaller than the sum of its proper divisors (86930928).

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

41090640 is a wasteful number, since it uses less digits than its factorization.

41090640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 41090640 is about 6410.1981248632. The cubic root of 41090640 is about 345.0756397898.

Adding to 41090640 its reverse (4609014), we get a palindrome (45699654).

The spelling of 41090640 in words is "forty-one million, ninety thousand, six hundred forty".