41620421 has 4 divisors (see below), whose sum is σ = 41702700. Its totient is φ = 41538144.

The previous prime is 41620399. The next prime is 41620477. The reversal of 41620421 is 12402614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 22137025 = 4414^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 41620421 - 2¹⁴ = 41604037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41620393 and 41620402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41620121) 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, 40376 + ... + 41393.

It is an arithmetic number, because the mean of its divisors is an integer number (10425675).

Almost surely, 2^41620421 is an apocalyptic number.

It is an amenable number.

41620421 is a deficient number, since it is larger than the sum of its proper divisors (82279).

41620421 is an equidigital number, since it uses as much as digits as its factorization.

41620421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82278.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 41620421 is about 6451.3890752302. The cubic root of 41620421 is about 346.5523298769.

The spelling of 41620421 in words is "forty-one million, six hundred twenty thousand, four hundred twenty-one".