406660741 has 4 divisors (see below), whose sum is σ = 411560352. Its totient is φ = 401761132.

The previous prime is 406660729. The next prime is 406660829. The reversal of 406660741 is 147066604.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 406660741 - 2²¹ = 404563589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406660697 and 406660706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406660841) 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 3 ways as a sum of consecutive naturals, for example, 2449681 + ... + 2449846.

It is an arithmetic number, because the mean of its divisors is an integer number (102890088).

Almost surely, 2^406660741 is an apocalyptic number.

It is an amenable number.

406660741 is a deficient number, since it is larger than the sum of its proper divisors (4899611).

406660741 is an equidigital number, since it uses as much as digits as its factorization.

406660741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899610.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 406660741 is about 20165.8310267641. The cubic root of 406660741 is about 740.8735368429.

The spelling of 406660741 in words is "four hundred six million, six hundred sixty thousand, seven hundred forty-one".