404002024 has 16 divisors (see below), whose sum is σ = 769922820. Its totient is φ = 198689280.

The previous prime is 404002021. The next prime is 404002031. The reversal of 404002024 is 420200404.

It can be written as a sum of positive squares in 2 ways, for example, as 356529924 + 47472100 = 18882^2 + 6890^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404001989 and 404002007.

It is not an unprimeable number, because it can be changed into a prime (404002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413449 + ... + 414424.

Almost surely, 2^404002024 is an apocalyptic number.

It is an amenable number.

404002024 is a deficient number, since it is larger than the sum of its proper divisors (365920796).

404002024 is a wasteful number, since it uses less digits than its factorization.

404002024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827940 (or 827936 counting only the distinct ones).

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

The square root of 404002024 is about 20099.8015910605. The cubic root of 404002024 is about 739.2554136994.

Adding to 404002024 its reverse (420200404), we get a palindrome (824202428).

It can be divided in two parts, 40400 and 2024, that added together give a palindrome (42424).

The spelling of 404002024 in words is "four hundred four million, two thousand, twenty-four".