404200402 has 8 divisors (see below), whose sum is σ = 607285116. Its totient is φ = 201772032.

The previous prime is 404200399. The next prime is 404200403. The reversal of 404200402 is 204002404.

It can be written as a sum of positive squares in 2 ways, for example, as 248724441 + 155475961 = 15771^2 + 12469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (404200403) 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, 162543 + ... + 165010.

Almost surely, 2^404200402 is an apocalyptic number.

404200402 is a deficient number, since it is larger than the sum of its proper divisors (203084714).

404200402 is a wasteful number, since it uses less digits than its factorization.

404200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328172.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 404200402 is about 20104.7358102513. The cubic root of 404200402 is about 739.3763933024.

Adding to 404200402 its reverse (204002404), we get a palindrome (608202806).

The spelling of 404200402 in words is "four hundred four million, two hundred thousand, four hundred two".