404027999 has 4 divisors (see below), whose sum is σ = 404230920. Its totient is φ = 403825080.

The previous prime is 404027969. The next prime is 404028013. The reversal of 404027999 is 999720404.

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 404027999 - 2²⁴ = 387250783 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 (404027969) 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, 98444 + ... + 102465.

It is an arithmetic number, because the mean of its divisors is an integer number (101057730).

Almost surely, 2^404027999 is an apocalyptic number.

404027999 is a deficient number, since it is larger than the sum of its proper divisors (202921).

404027999 is a wasteful number, since it uses less digits than its factorization.

404027999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202920.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 404027999 is about 20100.4477313318. The cubic root of 404027999 is about 739.2712566463.

The spelling of 404027999 in words is "four hundred four million, twenty-seven thousand, nine hundred ninety-nine".