220312426 has 4 divisors (see below), whose sum is σ = 330468642. Its totient is φ = 110156212.

The previous prime is 220312409. The next prime is 220312447. The reversal of 220312426 is 624213022.

220312426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191850201 + 28462225 = 13851^2 + 5335^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 220312397 and 220312406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55078105 + ... + 55078108.

Almost surely, 2^220312426 is an apocalyptic number.

220312426 is a deficient number, since it is larger than the sum of its proper divisors (110156216).

220312426 is a wasteful number, since it uses less digits than its factorization.

220312426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110156215.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 220312426 is about 14842.9251160275. The cubic root of 220312426 is about 603.9667046687.

Adding to 220312426 its reverse (624213022), we get a palindrome (844525448).

The spelling of 220312426 in words is "two hundred twenty million, three hundred twelve thousand, four hundred twenty-six".