402222300 has 144 divisors (see below), whose sum is σ = 1216609632. Its totient is φ = 102502400.

The previous prime is 402222283. The next prime is 402222311. The reversal of 402222300 is 3222204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 402222300.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 651592 + ... + 652208.

It is an arithmetic number, because the mean of its divisors is an integer number (8448678).

Almost surely, 2^402222300 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 402222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608304816).

402222300 is an abundant number, since it is smaller than the sum of its proper divisors (814387332).

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

402222300 is a wasteful number, since it uses less digits than its factorization.

402222300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 402222300 is about 20055.4805477206. The cubic root of 402222300 is about 738.1682844179.

Adding to 402222300 its reverse (3222204), we get a palindrome (405444504).

The spelling of 402222300 in words is "four hundred two million, two hundred twenty-two thousand, three hundred".