222530430 has 32 divisors (see below), whose sum is σ = 545439744. Its totient is φ = 58078496.

The previous prime is 222530423. The next prime is 222530437. The reversal of 222530430 is 34035222.

It is an interprime number because it is at equal distance from previous prime (222530423) and next prime (222530437).

It is a junction number, because it is equal to n+sod(n) for n = 222530397 and 222530406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222530437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77502 + ... + 80321.

It is an arithmetic number, because the mean of its divisors is an integer number (17044992).

Almost surely, 2^222530430 is an apocalyptic number.

222530430 is an abundant number, since it is smaller than the sum of its proper divisors (322909314).

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

222530430 is a wasteful number, since it uses less digits than its factorization.

222530430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157880.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 222530430 is about 14917.4538712208. The cubic root of 222530430 is about 605.9867602680.

Adding to 222530430 its reverse (34035222), we get a palindrome (256565652).

The spelling of 222530430 in words is "two hundred twenty-two million, five hundred thirty thousand, four hundred thirty".