404632247 has 4 divisors (see below), whose sum is σ = 404758200. Its totient is φ = 404506296.

The previous prime is 404632231. The next prime is 404632271. The reversal of 404632247 is 742236404.

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

It is a cyclic number.

It is not a de Polignac number, because 404632247 - 2⁴ = 404632231 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 (404632847) 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, 58028 + ... + 64625.

It is an arithmetic number, because the mean of its divisors is an integer number (101189550).

Almost surely, 2^404632247 is an apocalyptic number.

404632247 is a deficient number, since it is larger than the sum of its proper divisors (125953).

404632247 is a wasteful number, since it uses less digits than its factorization.

404632247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125952.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 404632247 is about 20115.4728256633. The cubic root of 404632247 is about 739.6396145108.

The spelling of 404632247 in words is "four hundred four million, six hundred thirty-two thousand, two hundred forty-seven".