402004024 has 16 divisors (see below), whose sum is σ = 753972120. Its totient is φ = 200944800.

The previous prime is 402004021. The next prime is 402004037. The reversal of 402004024 is 420400204.

It is a junction number, because it is equal to n+sod(n) for n = 402003989 and 402004007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402004021) 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, 45574 + ... + 53674.

Almost surely, 2^402004024 is an apocalyptic number.

It is an amenable number.

402004024 is a deficient number, since it is larger than the sum of its proper divisors (351968096).

402004024 is a wasteful number, since it uses less digits than its factorization.

402004024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310 (or 14306 counting only the distinct ones).

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

The square root of 402004024 is about 20050.0380049515. The cubic root of 402004024 is about 738.0347317570.

Adding to 402004024 its reverse (420400204), we get a palindrome (822404228).

The spelling of 402004024 in words is "four hundred two million, four thousand, twenty-four".