406559250 has 160 divisors (see below), whose sum is σ = 1204817328. Its totient is φ = 101952000.

The previous prime is 406559221. The next prime is 406559261. The reversal of 406559250 is 52955604.

406559250 is a `hidden beast` number, since 4 + 0 + 65 + 592 + 5 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 119968209 + 286591041 = 10953^2 + 16929^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 343660 + ... + 344840.

Almost surely, 2^406559250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406559250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602408664).

406559250 is an abundant number, since it is smaller than the sum of its proper divisors (798258078).

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

406559250 is a wasteful number, since it uses less digits than its factorization.

406559250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 406559250 is about 20163.3144596815. The cubic root of 406559250 is about 740.8118980331.

The spelling of 406559250 in words is "four hundred six million, five hundred fifty-nine thousand, two hundred fifty".