220421234 has 8 divisors (see below), whose sum is σ = 360689328. Its totient is φ = 100191460.

The previous prime is 220421197. The next prime is 220421281. The reversal of 220421234 is 432124022.

220421234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009552 + ... + 5009595.

It is an arithmetic number, because the mean of its divisors is an integer number (45086166).

Almost surely, 2^220421234 is an apocalyptic number.

220421234 is a deficient number, since it is larger than the sum of its proper divisors (140268094).

220421234 is a wasteful number, since it uses less digits than its factorization.

220421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019160.

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

The square root of 220421234 is about 14846.5899788470. The cubic root of 220421234 is about 604.0661174204.

Adding to 220421234 its reverse (432124022), we get a palindrome (652545256).

The spelling of 220421234 in words is "two hundred twenty million, four hundred twenty-one thousand, two hundred thirty-four".