404144452 has 6 divisors (see below), whose sum is σ = 707252798. Its totient is φ = 202072224.

The previous prime is 404144441. The next prime is 404144453. The reversal of 404144452 is 254441404.

It can be written as a sum of positive squares in only one way, i.e., 391011076 + 13133376 = 19774^2 + 3624^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404144452.

It is not an unprimeable number, because it can be changed into a prime (404144453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50518053 + ... + 50518060.

Almost surely, 2^404144452 is an apocalyptic number.

It is an amenable number.

404144452 is a deficient number, since it is larger than the sum of its proper divisors (303108346).

404144452 is a wasteful number, since it uses less digits than its factorization.

404144452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101036117 (or 101036115 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 404144452 is about 20103.3442988971. The cubic root of 404144452 is about 739.3422765475.

Adding to 404144452 its reverse (254441404), we get a palindrome (658585856).

The spelling of 404144452 in words is "four hundred four million, one hundred forty-four thousand, four hundred fifty-two".