406054273 has 4 divisors (see below), whose sum is σ = 407499588. Its totient is φ = 404608960.

The previous prime is 406054267. The next prime is 406054279. The reversal of 406054273 is 372450604.

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

It is an interprime number because it is at equal distance from previous prime (406054267) and next prime (406054279).

It can be written as a sum of positive squares in 2 ways, for example, as 183656704 + 222397569 = 13552^2 + 14913^2 .

It is a cyclic number.

It is not a de Polignac number, because 406054273 - 2⁹ = 406053761 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406054279) 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, 722236 + ... + 722797.

It is an arithmetic number, because the mean of its divisors is an integer number (101874897).

Almost surely, 2^406054273 is an apocalyptic number.

It is an amenable number.

406054273 is a deficient number, since it is larger than the sum of its proper divisors (1445315).

406054273 is a wasteful number, since it uses less digits than its factorization.

406054273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445314.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 406054273 is about 20150.7883964871. The cubic root of 406054273 is about 740.5050563607.

The spelling of 406054273 in words is "four hundred six million, fifty-four thousand, two hundred seventy-three".