406859444 has 24 divisors (see below), whose sum is σ = 737675400. Its totient is φ = 196116480.

The previous prime is 406859423. The next prime is 406859459. The reversal of 406859444 is 444958604.

It can be written as a sum of positive squares in 4 ways, for example, as 28090000 + 378769444 = 5300^2 + 19462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 406859395 and 406859404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86924 + ... + 91484.

It is an arithmetic number, because the mean of its divisors is an integer number (30736475).

Almost surely, 2^406859444 is an apocalyptic number.

It is an amenable number.

406859444 is a deficient number, since it is larger than the sum of its proper divisors (330815956).

406859444 is a wasteful number, since it uses less digits than its factorization.

406859444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363 (or 5361 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 406859444 is about 20170.7571498940. The cubic root of 406859444 is about 740.9941859974.

The spelling of 406859444 in words is "four hundred six million, eight hundred fifty-nine thousand, four hundred forty-four".