406504249 has 4 divisors (see below), whose sum is σ = 409428880. Its totient is φ = 403579620.

The previous prime is 406504213. The next prime is 406504261. The reversal of 406504249 is 942405604.

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 406504249 - 2⁷ = 406504121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406504649) 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, 1462107 + ... + 1462384.

It is an arithmetic number, because the mean of its divisors is an integer number (102357220).

Almost surely, 2^406504249 is an apocalyptic number.

It is an amenable number.

406504249 is a deficient number, since it is larger than the sum of its proper divisors (2924631).

406504249 is a wasteful number, since it uses less digits than its factorization.

406504249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924630.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 406504249 is about 20161.9505256808. The cubic root of 406504249 is about 740.7784898376.

The spelling of 406504249 in words is "four hundred six million, five hundred four thousand, two hundred forty-nine".