406225352776 has 16 divisors (see below), whose sum is σ = 762452154540. Its totient is φ = 202904778240.

The previous prime is 406225352683. The next prime is 406225352777. The reversal of 406225352776 is 677253522604.

It can be written as a sum of positive squares in 2 ways, for example, as 313011156676 + 93214196100 = 559474^2 + 305310^2 .

It is not an unprimeable number, because it can be changed into a prime (406225352777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25978965 + ... + 25994596.

Almost surely, 2^406225352776 is an apocalyptic number.

It is an amenable number.

406225352776 is a deficient number, since it is larger than the sum of its proper divisors (356226801764).

406225352776 is a wasteful number, since it uses less digits than its factorization.

406225352776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51974544 (or 51974540 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 406225352776 in words is "four hundred six billion, two hundred twenty-five million, three hundred fifty-two thousand, seven hundred seventy-six".