404061999 has 32 divisors (see below), whose sum is σ = 645580800. Its totient is φ = 221902560.

The previous prime is 404061997. The next prime is 404062063. The reversal of 404061999 is 999160404.

It is not a de Polignac number, because 404061999 - 2¹ = 404061997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404061999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404061991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412 + ... + 28430.

It is an arithmetic number, because the mean of its divisors is an integer number (20174400).

Almost surely, 2^404061999 is an apocalyptic number.

404061999 is a deficient number, since it is larger than the sum of its proper divisors (241518801).

404061999 is a wasteful number, since it uses less digits than its factorization.

404061999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28075.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 404061999 is about 20101.2934658444. The cubic root of 404061999 is about 739.2919932601.

The spelling of 404061999 in words is "four hundred four million, sixty-one thousand, nine hundred ninety-nine".