404251147 has 4 divisors (see below), whose sum is σ = 404385520. Its totient is φ = 404116776.

The previous prime is 404251139. The next prime is 404251157. The reversal of 404251147 is 741152404.

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 404251147 - 2³ = 404251139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404251157) 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, 62568 + ... + 68725.

It is an arithmetic number, because the mean of its divisors is an integer number (101096380).

Almost surely, 2^404251147 is an apocalyptic number.

404251147 is a deficient number, since it is larger than the sum of its proper divisors (134373).

404251147 is a wasteful number, since it uses less digits than its factorization.

404251147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134372.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 404251147 is about 20105.9977867302. The cubic root of 404251147 is about 739.4073334704.

The spelling of 404251147 in words is "four hundred four million, two hundred fifty-one thousand, one hundred forty-seven".