406455253 has 4 divisors (see below), whose sum is σ = 406992940. Its totient is φ = 405917568.

The previous prime is 406455211. The next prime is 406455289. The reversal of 406455253 is 352554604.

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 231739729 + 174715524 = 15223^2 + 13218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406455253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406455293) 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, 267708 + ... + 269221.

It is an arithmetic number, because the mean of its divisors is an integer number (101748235).

Almost surely, 2^406455253 is an apocalyptic number.

It is an amenable number.

406455253 is a deficient number, since it is larger than the sum of its proper divisors (537687).

406455253 is an equidigital number, since it uses as much as digits as its factorization.

406455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537686.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 406455253 is about 20160.7354280542. The cubic root of 406455253 is about 740.7487266052.

The spelling of 406455253 in words is "four hundred six million, four hundred fifty-five thousand, two hundred fifty-three".