41040021 has 16 divisors (see below), whose sum is σ = 60314688. Its totient is φ = 24614400.

The previous prime is 41039983. The next prime is 41040029. The reversal of 41040021 is 12004014.

It is not a de Polignac number, because 41040021 - 2¹⁷ = 40908949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41039979 and 41040006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41040029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3210 + ... + 9611.

It is an arithmetic number, because the mean of its divisors is an integer number (3769668).

Almost surely, 2^41040021 is an apocalyptic number.

It is an amenable number.

41040021 is a deficient number, since it is larger than the sum of its proper divisors (19274667).

41040021 is a wasteful number, since it uses less digits than its factorization.

41040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12932.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 41040021 is about 6406.2485902437. The cubic root of 41040021 is about 344.9338835704.

Adding to 41040021 its reverse (12004014), we get a palindrome (53044035).

The spelling of 41040021 in words is "forty-one million, forty thousand, twenty-one".