220340426 has 16 divisors (see below), whose sum is σ = 335664000. Its totient is φ = 108458208.

The previous prime is 220340399. The next prime is 220340431. The reversal of 220340426 is 624043022.

It is a super-2 number, since 2×220340426² = 97099806659722952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103925 + ... + 106023.

It is an arithmetic number, because the mean of its divisors is an integer number (20979000).

Almost surely, 2^220340426 is an apocalyptic number.

220340426 is a deficient number, since it is larger than the sum of its proper divisors (115323574).

220340426 is a wasteful number, since it uses less digits than its factorization.

220340426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 220340426 is about 14843.8682963707. The cubic root of 220340426 is about 603.9922900789.

Adding to 220340426 its reverse (624043022), we get a palindrome (844383448).

The spelling of 220340426 in words is "two hundred twenty million, three hundred forty thousand, four hundred twenty-six".