41564421 has 12 divisors (see below), whose sum is σ = 62261472. Its totient is φ = 27709452.

The previous prime is 41564417. The next prime is 41564441. The reversal of 41564421 is 12446514.

41564421 is a `hidden beast` number, since 4 + 15 + 644 + 2 + 1 = 666.

It is not a de Polignac number, because 41564421 - 2² = 41564417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41564441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85281 + ... + 85766.

It is an arithmetic number, because the mean of its divisors is an integer number (5188456).

Almost surely, 2^41564421 is an apocalyptic number.

It is an amenable number.

41564421 is a deficient number, since it is larger than the sum of its proper divisors (20697051).

41564421 is an equidigital number, since it uses as much as digits as its factorization.

41564421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171062 (or 171050 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 41564421 is about 6447.0474637620. The cubic root of 41564421 is about 346.3968321630.

The spelling of 41564421 in words is "forty-one million, five hundred sixty-four thousand, four hundred twenty-one".