406606128250 has 96 divisors (see below), whose sum is σ = 894208223376. Its totient is φ = 138027120000.

The previous prime is 406606128233. The next prime is 406606128259. The reversal of 406606128250 is 52821606604.

It can be written as a sum of positive squares in 8 ways, for example, as 171222991681 + 235383136569 = 413791^2 + 485163^2 .

It is not an unprimeable number, because it can be changed into a prime (406606128259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1072932 + ... + 1401568.

Almost surely, 2^406606128250 is an apocalyptic number.

406606128250 is an abundant number, since it is smaller than the sum of its proper divisors (487602095126).

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

406606128250 is a wasteful number, since it uses less digits than its factorization.

406606128250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328769 (or 328752 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 406606128250 in words is "four hundred six billion, six hundred six million, one hundred twenty-eight thousand, two hundred fifty".