402321024 has 96 divisors (see below), whose sum is σ = 1323135840. Its totient is φ = 114946560.

The previous prime is 402321013. The next prime is 402321053. The reversal of 402321024 is 420123204.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402320988 and 402321006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16882 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (13782665).

Almost surely, 2^402321024 is an apocalyptic number.

It is an amenable number.

402321024 is an abundant number, since it is smaller than the sum of its proper divisors (920814816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402321024 is a wasteful number, since it uses less digits than its factorization.

402321024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49918 (or 49903 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402321024 is about 20057.9416690746. The cubic root of 402321024 is about 738.2286730506.

Adding to 402321024 its reverse (420123204), we get a palindrome (822444228).

The spelling of 402321024 in words is "four hundred two million, three hundred twenty-one thousand, twenty-four".