41421540 has 48 divisors (see below), whose sum is σ = 117956160. Its totient is φ = 10857600.

The previous prime is 41421533. The next prime is 41421557. The reversal of 41421540 is 4512414.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 9390.

It is an arithmetic number, because the mean of its divisors is an integer number (2457420).

Almost surely, 2^41421540 is an apocalyptic number.

It is an amenable number.

41421540 is an abundant number, since it is smaller than the sum of its proper divisors (76534620).

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

41421540 is a wasteful number, since it uses less digits than its factorization.

41421540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11772 (or 11770 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 41421540 is about 6435.9568053243. The cubic root of 41421540 is about 345.9994542631. Note that the first 3 decimals are identical.

Adding to 41421540 its reverse (4512414), we get a palindrome (45933954).

The spelling of 41421540 in words is "forty-one million, four hundred twenty-one thousand, five hundred forty".