404142846 has 16 divisors (see below), whose sum is σ = 834359808. Its totient is φ = 130368600.

The previous prime is 404142841. The next prime is 404142929. The reversal of 404142846 is 648241404.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404142841) 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 7 ways as a sum of consecutive naturals, for example, 1086220 + ... + 1086591.

It is an arithmetic number, because the mean of its divisors is an integer number (52147488).

Almost surely, 2^404142846 is an apocalyptic number.

404142846 is an abundant number, since it is smaller than the sum of its proper divisors (430216962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404142846 is a wasteful number, since it uses less digits than its factorization.

404142846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172847.

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 404142846 is about 20103.3043552546. The cubic root of 404142846 is about 739.3412972068.

The spelling of 404142846 in words is "four hundred four million, one hundred forty-two thousand, eight hundred forty-six".