41616021 has 4 divisors (see below), whose sum is σ = 55488032. Its totient is φ = 27744012.

The previous prime is 41615929. The next prime is 41616031. The reversal of 41616021 is 12061614.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 41616021 - 2¹⁵ = 41583253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41616031) 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, 6936001 + ... + 6936006.

It is an arithmetic number, because the mean of its divisors is an integer number (13872008).

Almost surely, 2^41616021 is an apocalyptic number.

It is an amenable number.

41616021 is a deficient number, since it is larger than the sum of its proper divisors (13872011).

41616021 is a wasteful number, since it uses less digits than its factorization.

41616021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13872010.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 41616021 is about 6451.0480543862. The cubic root of 41616021 is about 346.5401172502.

Adding to 41616021 its reverse (12061614), we get a palindrome (53677635).

The spelling of 41616021 in words is "forty-one million, six hundred sixteen thousand, twenty-one".