404200402042 has 16 divisors (see below), whose sum is σ = 629899419240. Its totient is φ = 194293748992.

The previous prime is 404200402027. The next prime is 404200402091. The reversal of 404200402042 is 240204002404.

It can be written as a sum of positive squares in 4 ways, for example, as 270835935561 + 133364466481 = 520419^2 + 365191^2 .

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, 14941363 + ... + 14968390.

Almost surely, 2^404200402042 is an apocalyptic number.

404200402042 is a deficient number, since it is larger than the sum of its proper divisors (225699017198).

404200402042 is a wasteful number, since it uses less digits than its factorization.

404200402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29910017.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 404200402042 its reverse (240204002404), we get a palindrome (644404404446).

The spelling of 404200402042 in words is "four hundred four billion, two hundred million, four hundred two thousand, forty-two".