406705049 has 4 divisors (see below), whose sum is σ = 409200336. Its totient is φ = 404209764.

The previous prime is 406705043. The next prime is 406705087. The reversal of 406705049 is 940507604.

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 406705049 - 2¹² = 406700953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (406705043) 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, 1247399 + ... + 1247724.

It is an arithmetic number, because the mean of its divisors is an integer number (102300084).

Almost surely, 2^406705049 is an apocalyptic number.

It is an amenable number.

406705049 is a deficient number, since it is larger than the sum of its proper divisors (2495287).

406705049 is a wasteful number, since it uses less digits than its factorization.

406705049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495286.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 406705049 is about 20166.9295878178. The cubic root of 406705049 is about 740.9004433272.

The spelling of 406705049 in words is "four hundred six million, seven hundred five thousand, forty-nine".