402224021300 has 144 divisors (see below), whose sum is σ = 905924017152. Its totient is φ = 154911513600.

The previous prime is 402224021233. The next prime is 402224021317. The reversal of 402224021300 is 3120422204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158167829 + ... + 158170371.

It is an arithmetic number, because the mean of its divisors is an integer number (6291139008).

Almost surely, 2^402224021300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402224021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452962008576).

402224021300 is an abundant number, since it is smaller than the sum of its proper divisors (503699995852).

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

402224021300 is a wasteful number, since it uses less digits than its factorization.

402224021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 402224021300 its reverse (3120422204), we get a palindrome (405344443504).

The spelling of 402224021300 in words is "four hundred two billion, two hundred twenty-four million, twenty-one thousand, three hundred".