41021440 has 52 divisors (see below), whose sum is σ = 98488584. Its totient is φ = 16400384.

The previous prime is 41021429. The next prime is 41021447. The reversal of 41021440 is 4412014.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41021447) 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, 19479 + ... + 21481.

Almost surely, 2^41021440 is an apocalyptic number.

41021440 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 41021440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49244292).

41021440 is an abundant number, since it is smaller than the sum of its proper divisors (57467144).

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

41021440 is an equidigital number, since it uses as much as digits as its factorization.

41021440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 41021440 is about 6404.7982013487. The cubic root of 41021440 is about 344.8818190747.

Adding to 41021440 its reverse (4412014), we get a palindrome (45433454).

The spelling of 41021440 in words is "forty-one million, twenty-one thousand, four hundred forty".