409983395042 has 16 divisors (see below), whose sum is σ = 662291457912. Its totient is φ = 189220080000.

The previous prime is 409983394991. The next prime is 409983395051. The reversal of 409983395042 is 240593389904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 215889400321 + 194093994721 = 464639^2 + 440561^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921468 + ... + 3058584.

Almost surely, 2^409983395042 is an apocalyptic number.

409983395042 is a deficient number, since it is larger than the sum of its proper divisors (252308062870).

409983395042 is a wasteful number, since it uses less digits than its factorization.

409983395042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252133.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 409983395042 in words is "four hundred nine billion, nine hundred eighty-three million, three hundred ninety-five thousand, forty-two".