42410621 has 12 divisors (see below), whose sum is σ = 47881596. Its totient is φ = 37509120.

The previous prime is 42410581. The next prime is 42410623. The reversal of 42410621 is 12601424.

42410621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39866596 + 2544025 = 6314^2 + 1595^2 .

It is not a de Polignac number, because 42410621 - 2¹⁴ = 42394237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42410593 and 42410602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42410623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (3990133).

Almost surely, 2^42410621 is an apocalyptic number.

It is an amenable number.

42410621 is a deficient number, since it is larger than the sum of its proper divisors (5470975).

42410621 is a wasteful number, since it uses less digits than its factorization.

42410621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9532 (or 9521 counting only the distinct ones).

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

The square root of 42410621 is about 6512.3437409277. The cubic root of 42410621 is about 348.7317939477.

The spelling of 42410621 in words is "forty-two million, four hundred ten thousand, six hundred twenty-one".