402224504 has 64 divisors (see below), whose sum is σ = 853908480. Its totient is φ = 175968000.

The previous prime is 402224503. The next prime is 402224513. The reversal of 402224504 is 405422204.

It is a self number, because there is not a number n which added to its sum of digits gives 402224504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402224503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771764 + ... + 772284.

It is an arithmetic number, because the mean of its divisors is an integer number (13342320).

Almost surely, 2^402224504 is an apocalyptic number.

402224504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402224504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426954240).

402224504 is an abundant number, since it is smaller than the sum of its proper divisors (451683976).

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

402224504 is a wasteful number, since it uses less digits than its factorization.

402224504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 848 counting only the distinct ones).

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

The square root of 402224504 is about 20055.5354952193. The cubic root of 402224504 is about 738.1696326938.

Adding to 402224504 its reverse (405422204), we get a palindrome (807646708).

The spelling of 402224504 in words is "four hundred two million, two hundred twenty-four thousand, five hundred four".