404352071 has 4 divisors (see below), whose sum is σ = 404723112. Its totient is φ = 403981032.

The previous prime is 404352049. The next prime is 404352073. The reversal of 404352071 is 170253404.

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 404352071 - 2⁶ = 404352007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404352071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404352073) 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, 183881 + ... + 186066.

It is an arithmetic number, because the mean of its divisors is an integer number (101180778).

Almost surely, 2^404352071 is an apocalyptic number.

404352071 is a deficient number, since it is larger than the sum of its proper divisors (371041).

404352071 is a wasteful number, since it uses less digits than its factorization.

404352071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371040.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 404352071 is about 20108.5074284493. The cubic root of 404352071 is about 739.4688610109.

The spelling of 404352071 in words is "four hundred four million, three hundred fifty-two thousand, seventy-one".