404445002 has 16 divisors (see below), whose sum is σ = 670993512. Its totient is φ = 181621440.

The previous prime is 404444987. The next prime is 404445091. The reversal of 404445002 is 200544404.

It can be written as a sum of positive squares in 4 ways, for example, as 396766561 + 7678441 = 19919^2 + 2771^2 .

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, 209249 + ... + 211172.

Almost surely, 2^404445002 is an apocalyptic number.

404445002 is a deficient number, since it is larger than the sum of its proper divisors (266548510).

404445002 is a wasteful number, since it uses less digits than its factorization.

404445002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420473.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 404445002 is about 20110.8180340830. The cubic root of 404445002 is about 739.5255066272.

Adding to 404445002 its reverse (200544404), we get a palindrome (604989406).

The spelling of 404445002 in words is "four hundred four million, four hundred forty-five thousand, two".