220311430 has 32 divisors (see below), whose sum is σ = 401244768. Its totient is φ = 87091200.

The previous prime is 220311397. The next prime is 220311437. The reversal of 220311430 is 34113022.

It is a happy number.

220311430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311437) 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, 406960 + ... + 407500.

It is an arithmetic number, because the mean of its divisors is an integer number (12538899).

Almost surely, 2^220311430 is an apocalyptic number.

220311430 is a deficient number, since it is larger than the sum of its proper divisors (180933338).

220311430 is a wasteful number, since it uses less digits than its factorization.

220311430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220311430 is about 14842.8915646514. The cubic root of 220311430 is about 603.9657945192.

Adding to 220311430 its reverse (34113022), we get a palindrome (254424452).

The spelling of 220311430 in words is "two hundred twenty million, three hundred eleven thousand, four hundred thirty".