406776744392 has 12 divisors (see below), whose sum is σ = 762709778145. Its totient is φ = 203387470224.

The previous prime is 406776744383. The next prime is 406776744397. The reversal of 406776744392 is 293447677604.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 273941279236 + 132835465156 = 523394^2 + 364466^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=450986.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406776744397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1691198 + ... + 1916690.

Almost surely, 2^406776744392 is an apocalyptic number.

It is an amenable number.

406776744392 is a deficient number, since it is larger than the sum of its proper divisors (355933033753).

406776744392 is an frugal number, since it uses more digits than its factorization.

406776744392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450992 (or 225495 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 59.

The spelling of 406776744392 in words is "four hundred six billion, seven hundred seventy-six million, seven hundred forty-four thousand, three hundred ninety-two".